During a certain period of time, a car can cover the distance of 120 miles, going at an average speed of 55 mph. what distance over the same period of time would cover a truck, going at an average speed of 44 mph?

What are the domain and range of the function? f(x) = -4 (sqrt)x

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?

Arecipe uses 2 cups of sugar to make 32 brownies. how many cups of sugar are needed to make 72 brownies?