I'm in a march madness competition for math, and i really need to win, so if you could , that would be great! since i got this question wrong, i need to do another one like this again to get a point, so a good explanation would be nice, but is optional. (yes i actually like looking at the explanation : ))

Each of the four sides of a swimming pool measures 9 meters. the pool is 5 meters deep. how much water will be needed to fill it completely? a. 45 cubic meters b. 81 cubic meters c. 225 cubic meters d. 405 cubic meters reset next

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

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?