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A resort rents surfboards for $15 plus $3 for each hour the surfboard is rented. An expression for the total cost of renting a surfboard for h hours is 15 + 3h. if teresa wants to rent a surfboard for 4 hours, how much money will she have left over if she paids with $40?

Answer :

for 4 hours

[tex]15+3h=15+3(4)=15+12=27[/tex]

she paids with $40

[tex]40-27=13[/tex]

answer: $13