8. It took Sharon 85 minutes to wash three cars. She spent x minutes on each car and 10 minutes putting everything away. Solve 3x +10 = 85 to find out how long it took to wash each car.
a. 5.5 minutes
b. 28.3 minutes
c. 25 minutes
d. 31.65 minutes

Percent increase and decrease. original number: 45 new number: 18

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3

Maria has $10,000 to invest in two accounts.he decides to invest one part in an account with 5% interest and the rest in an account with 8% interest. at the end of the year he has earned $702,50 in interest.¿how much did maria invest in the 8% account?