A plant measured x inches tall last week and 8 inches tall this week. 1. Circle the expression that represents the number of inches the plant grew this week. Explain how you know.
◦ x - 8
◦ 8 - x
2. For the expression not chosen, describe a situation that the expression might represent.

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?

What is the greater volume 72 quarts or 23 gallons

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1