What integer is equivalent to 9^3/2

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

What is coefficient of the term of degree of degree 5 in the polynomial below

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?