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?
The balloon descended 500 feet, rose 950 feet, descended 375 feet, and rose 1100 feet. Altogether, the balloon has risen 1100 - 500 + 950 = <<1100-500+950=1550>>1550 feet.
It has descended 375 feet, so the balloon has an elevation of 1550 - 375 = <<1550-375=1175>>1175 feet over the school. 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?
For every 3 1/2 hours, every Saturday, Aaron makes 3.5 * 7.25 = $<<3.5*7.25=25.375>>25.375
Every four weeks, Aaron gets paid 4 * $25.375 = $<<4*25.375=101.50>>101.50
After getting the $1.00 raise, he will now be paid 101.50 + 1.00 = $<<101.50+1=102.50>>102.50 in his next paycheck. Answer: \boxed{102.50}.
What is the value of the expression 2/3 { -6+4}
To simplify the expression 2/3 { -6+4}, we first need to evaluate the expression within the brackets.
-6+4 = -2
Now we substitute this value back into the expression and multiply:
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 their total cost is $45.50 + $18.25 = $<<45.50+18.25=63.75>>63.75.
We know that Jason earned 1/3 of the total cost by mowing lawns. Therefore, the amount he earned through mowing lawns is (1/3) * $63.75 = $<<1/3*63.75=21.25>>21.25.
To find out how much Jason earned babysitting, we subtract the amount he earned through mowing lawns from the total cost.
Jason earned $63.75 - $21.25 = $<<63.75-21.25=42.50>>42.50 babysitting.
Therefore, Jason earned $42.50 babysitting. Answer: \boxed{42.50}.