A surf shop charges $12.75 to rent A wetsuit and $23.50 per hour to rent A surfboard. Write A function to model the cost C to rent a wetsuit and surfboard for T hours.

I am confused I do not know

No clue sorry my true writing an equation

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post

The answer would be 13.5 minutes.