There are approximately 5.2 lbs of muscle for every 8 lbs of body weight for a cheetah. How of the weight is muscle on a 153 lb cheetah?

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).