Use the information in the chart to answer questions 2 and 3 below:
The chart shows the amount of money that Caleb earns when he babysits for the Hudson family.
Minutes of Babysitting 30 45 60 75
Pay $2.50 $3.75 $5.00 $6.25
2. How much money would Caleb earn if he babysat for 2 1/2 hours?
A. $7.50
B. $10
C. $11.25
D. $12.50
3. If Caleb earned $17.50, how many hours did he babysit?
Looks like she is getting $5/hour
check: 2.5/(30/60) = 5 , 30/60 = 1/2 hour
6.25/(75/60) = 5 , 75/60 = 1 1/4 or 1.25 hours
income = 5 x time
for 2 1/2 hours = 2.5 hour
= 5(2.5) = $7.50
17.50 = 5 x time
time = 17.50/5 hours = 3.5 hours