30 feet by 14 feet just means 30x14 which is equal to 420 square feet if each piece is 1x1 then he will need 420 pieces of sod
I don't see a "shown below," so I'm not sure if I could accurately answer your question. However, if your graph point is (x,-3), then it wants you to move your graphed point up two units. I believe that would be y = x -1? I'm not sure
23× 32× 5 that’s the prim factorization