Mark charges a one-time fee of $12 for travel and then $7.50 per hour for labor. How many hours will he need to work to make $42?

A.3

B.4

C.5

D.6

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

Which is an equation for the nth terms of the sequence 12,15,18,21

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -