If the proportion of the total disposable income spent on consumer goods and services is 94.1 percent and if consumers spend 80 percent of each additional dollar, what is
a. The APC?
b. The APS?
c. The MPC?
d. The MPS?

An airport in death valley is 60 feet below sea level, and an airplane is flying 2,000 feet above sea level. how many feet must the plane descend in order to land? a. 2060 b. 2000 feet c. 1940 feet d. 1880 feet e.1400 feet will mark as brainliest

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

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?