8. Hamburgers are $3 and hotdogs are $2. If you have $30 to spend, and you need to buy 12 food items, how many of each can you buy? Find the
numbers and write the solution as an ordered pair (x, y) *
2 points

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?

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?