A kayak rental company charges a $15 fee to rent a kayak plus $3.50 per hour. Which equation represents the function for the total cost, c, to rent a kayak for h hours?

A. c=3.5x+15

B. c=3.5x-15

C. c=-3.5x+15

D. c=-3.5x-15

Solve each equation for the indicated value Solve for a d=a+b+c

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