Look at it and i need an explanation please

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?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?