A hot air balloon leaves the ground and rises to an elevation of 1,100 feet. During the next 30 minutes, it descends 500 feet, rises 950 feet, descends 375 feet, and finally passes over a school. What is the elevation of the balloon when it passes over the school?

To find the elevation of the balloon when it passes over the school, we need to subtract the total descent from the total ascent.

The total ascent is 1,100 + 950 = <<1100+950=2050>>2,050 feet.
The total descent is 500 + 375 = <<500+375=875>>875 feet.
Therefore, the elevation of the balloon when it passes over the school is 2,050 - 875 = <<2050-875=1175>>1,175 feet. Answer: \boxed{1175}.

Aaron works 3 1/2 hours every Saturday at a rate of $7.25 per hour. He is paid every four weeks. If his boss gives him a $1.00 raise, how much will Aaron be paid in his next paycheck?

Aaron's current hourly rate is $7.25. After a $1.00 raise, his new hourly rate will be $7.25 + $1.00 = $<<7.25+1=8.25>>8.25.

Aaron works for 3 1/2 hours every Saturday. To find his total earnings for one Saturday, we multiply his hourly rate by the number of hours he works: $8.25/hour * 3.5 hours = $<<8.25*3.5=28.875>>28.875.

Aaron is paid every four weeks. To find his total earnings for four weeks, we multiply his weekly earnings by four: $28.875/week * 4 weeks = $<<28.875*4=115.50>>115.50.

Therefore, Aaron will be paid $115.50 in his next paycheck. Answer: \boxed{115.50}.

What is the value of the expression? 2/3 (-6 + 4)

To find the value of the expression, we first need to simplify inside the parentheses: -6 + 4 = -2.

Next, we multiply the result by 2/3:
2/3 * (-2) = -4/3.

Therefore, the value of the expression 2/3 (-6 + 4) is -4/3. Answer: \boxed{-\frac{4}{3}}.

Jason is saving up for a skateboard and helmet. The skateboard is $45.50 with tax and the helmet is $18.25 with tax. He earned 1/3


of the money by mowing lawns and the rest by babysitting. How much did Jason earn babysitting?

To find out how much Jason earned babysitting, we first need to determine the total cost of the skateboard and helmet.

The cost of the skateboard is $45.50 and the cost of the helmet is $18.25, so the total cost is $45.50 + $18.25 = $<<45.50+18.25=63.75>>63.75.

Jason earned 1/3 of the total money by mowing lawns, which means he earned 1/3 * $63.75 = $<<1/3*63.75=21.25>>21.25 mowing lawns.

Since Jason earned the rest by babysitting, the amount he earned babysitting is $63.75 - $21.25 = $<<63.75-21.25=42.50>>42.50.

Therefore, Jason earned $42.50 babysitting. Answer: \boxed{42.50}.

Jerri was using a recipe for a large cake that required one-third of a tablespoon of cinnamon. Instead of making one large cake, Jerri decided to use the recipe to make four small cakes. How much cinnamon should she use for each of the four small cakes?

If the recipe calls for one-third of a tablespoon of cinnamon for a large cake, to calculate the amount of cinnamon for each small cake, we need to divide the original measurement by the number of small cakes.

One-third of a tablespoon divided by four small cakes is (1/3) ÷ 4 = 1/12.

Therefore, Jerri should use 1/12 tablespoon of cinnamon for each of the four small cakes. Answer: \boxed{\frac{1}{12}} \text{ tablespoon}.

Molly's family has $3,000 set aside for an upcoming vacation. The family plans to spend 3/5 of this amount on gasoline for the drive and motel rooms along the way and 1/2 of the remainder on meals. How much does Molly's family plan to spend on meals?