Coach davis went to the sporting goods store to get ready for tennis season . he bought 25 containers of tennis balls and 12 packs of grip tape . sales tax is 5%. how much does coach david owe ?
tennis ball containers , each- $5.25
packs of grip tape, each - $2.50

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?