What is the coefficient of the product (-5xy2) and (-4x2y)

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

What is not true about kl and mn? what is mn? (show )

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?