Please answer my math equation

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =

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?

Interpret the following expression (5y^2-7)^3/(2y)^2