The test scores of students in a math class are 56, 42, 50, 63, 58, 41, 50, 48, 68, and 48. what is the mean of this set of data?

Aregression was run to determine if there is a relationship between hours of tv watched per day (x) and number of situps a person can do (y). the results of the regression were: y=ax+b a=-0.662 b=30.418 r2=0.703921 r=-0.839

What is the perimeter, p, of a rectangle that has a length of x + 8 and a width of y − 1? p = 2x + 2y + 18 p = 2x + 2y + 14 p = x + y − 9 p = x + y + 7

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase