Trina earns $28.50 tutoring for 3 hours. write an equation relating her earnings m to the number of hours h she tutors. assuming the situation is proportional, how much would trina earn tutoring for 2 hours? for 4.5 hours?

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?

What is the arc length of the subtending arc for an angle of 72 degrees on a circle of radius 4? o a. 8a oc. 16 t d. 8