Gianna babysat for 5.5 hours last weekend and earned $41.25. How much did Gianna earn per hour babysitting? A.$7.25
B.$7.00
C.$6.50
D.$7.50

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?

You spin the spinner shown below once. each sector shown has an equal area. what is p(beaver ) p(beaver)? if necessary, round your answer to 2 2 decimal places.

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?