À - manufacturer's marginal revenue function MR = 3 - 2x - 3x2. Find the increase in the
manufacturer's total revenue if production is increased
from 10 to 30 units.​

Can someone explain the elimination method to me for this problem?

Given the graph below state whether or not the relation is a function, and give the domain and range.

Formulate the indicated conclusion in nontechnical terms. be sure to address the original claim. the foundation chair for a hospital claims that the mean number of filled overnight beds is over 523, and she is therefore justified starting a funding campaign to add a wing to the hospital. assuming that a hypothesis test has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.