Atheater has 500 seats. three fourths of the seats are full, how many seats are full

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?

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

What additional information could be used to prove abc =mqr using sas? check all that apply.