-15 = 5a +12- 2a + 6 -11 -3 10 7

What term makes it inconsistent y=2x - 4 ?

How to do this , and can some one explain

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?