Charlie received -33 points on an exam. He
got 11 questions wrong.
What integer represents
the amount of points he
was penalized on each
question?

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.

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.