Jack's Plumbing charges customers $100 per hour for repair jobs. A-1 Plumbing charges according to the equation y=75x+50 , where x = time in hours and y = cost in dollars. Explain why A-1 Plumbing charges less than Jack's Plumbing for a 4‑hour repair job. Does A-1 Plumbing charge less than Jack's Plumbing for all repair jobs? Explain why or why not.

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.