Suppose the correlation between the scores of students on exam 1 and exam 2 in AFDA class was r = 0.7 and I also got r^2 =0.49. If I created a line of best fit how accurate would I expect my values to be from the equation (in terms of %)

A. 0.49
B. 49%
C. 70%

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Acylinder has volume 45π and radius 3. what is it’s height?

Draw a tape diagram to represent each situation. for some of the situations, you need to decide what to represent with a variable andre bakes 9 pans of brownies. he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students