Question

you and four of your friends go to carnival. The cost to get in is $10 per person plus $2 for each ride. The cost per person can be represented by the function f(x)=2x + 10 write a rule for the total cost for you and your friends if you all ride the same number of rides

Answer 1

f(x) = 10x + 50

multiply the cost per person by 5 ( you and 4 friends )

f(x) = 5(2x + 10) = 10x + 50