IM SO BORED I’m in the car with absolutely nothing to do please help me

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?

Pranza plotted point a in the coordinate plane below.

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'