What is the vertex of (2x)(x-11)

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

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?