10 Rotate the point (7, 8) around the origin 90 degrees. State the image of the point.
A (-7, -8)
B (8, -7)
C (-8,7)
D (8,7)

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?

Find the zeros of each function. f(x) = x^2 + 5x - 6

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?