Nation's Capital Fitness, Incorporated, operates a chain of fitness

centers in the Washington, D$.$C$.,$ area. The firm's controller is

accumulating data to be used in preparing its annual profit plan for

the coming year. The cost behavior pattern of the firm's equipment

maintenance costs must be determined. The accounting staff has

suggested the use of an equation, in the form of $Y=a+bx,$ for

maintenance costs. Data regarding the maintenance hours and costs

for last year are as follows:

PR $6-38($Algo$)$ Part $3$ Compute the predicted maintenance cost...

Compute the predicted maintenance cost at $670$ hours of activity.