Ned works after school When he cuts grass he earns 625 per h

Ned works after school. When he cuts grass, he earns $6.25 per hour. When he delivers papers, he earns $5.95 per hour and when he runs errands for people, he earns $5.50 per errand. If in one week he cut grass for 6 hours, delivered papers for 11 hours, and ran 6 errands, how much money did he earn?

A. $114.95

B. $135.95

C. $144.15

D. $156.05

Solution

amount of money earned is calculated by multiplying quantity by hourly rate eg. number of hours doing errands times pay for errands per hours

6.25*6+5.95*11+5.5*6=135.95 dollars