A club held a car wash as fund-raiser. They charged $20 for trucks and $15 for cars. The club washed a total of 35 vehicles and earned $585

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.

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?