If the value of r is not significant, what can be said about the regression line?

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.

Recall that two angles are complementary if the sum of their measures is? 90°. find the measures of two complementary angles if one angle is twenty dash nine times the other angle.