The cost of admission to a history museum is $3.25 per person over the age of three , kids three and under get in for free. if the total cost of admission for the warrick family, including their two six month old twins is $19.50 , find how many family members are over three years old

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?