Jackie wants to earn $380 this summer by babysitting and dog walking. She earns $40 each time she babysits and $25 each time she walks dogs. This situation can be represented by the equation 40x + 25y = 380. Use the equation to determine whether or not Jackie will earn $380 if she babysits 7 times and walks dogs 4 times. Complete the justification of your answer.

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?

Define multiplicative inverse. give an example of a number and its multiplicative inverse.

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?