Porfa ayuda necesito para hoy es del tema resolución de triangulos rectángulos​

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?

Can someone answer this question for me

What is the solution to the equation e3x=12? round your answer to the nearest hundredth