19. Which of the following is not a solution to the system of inequalities

A. (1-, -1)
B. (0, 1)
C. ( -3, 3)
D. (-3, 2)

Ten times the square of a non-zero number is eqaul to ninety times the number

Bobby bought 1.12 pounds of turkey at a cost of 2.50 per pound. carla bought 1.4 pounds of turkey at a cost of 2.20 per pound. who spent more and by much?

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?