Nikki and Dave both work as cleaners. The equation shown models the total amount, n, in dollars that Nikki charges to clean carpets in r rooms. n = 20r The table shows the total amount d, in dollars that Dave charges to clean windows in r rooms. He charges the same amount per room to clean windows. Complete the table to show the amount that each person charges to clean r rooms.​

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true