Brownies sell for $40 per batch and a batch of cupcakes sell for $60. What is the exact combination of brownies and cupcakes batches that will make the most money in a day?

What is the inverse of the function f(x)=4x+8

Which system of linear inequalities is represented by the graph?

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?