Chores wayne raked 30 bags of leaves in 3 hours. if he raked the same number of bags each hour, how many bags of leaves did he rake in one hour. use rates. show your work.

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

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?

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.