Answer:
The value of sales increase when when advertising is increased by one unit is $123.3
Explanation:
The value of sales increase is obtained by differentiating the sales equation (Y) with respect to advertising (X)
Y = 45.9 + 123.3X
dY/dX = 123.3
Increase in sales when advertising is increased by one unit = $123.3
<span>If the changes need to be done immediately in order to benefit the health of the client, then IRB approval is not required. The IRB, which stands for Institutional Review Board, is a select group of people that review and regulate biomedical research in which human beings are involved. This group is regulated by the FDA.</span>
D
Lump-sum taxes are described as regressive taxes, meaning that the more income one has, the less they pay in proportion of their income to tax. As a result, they all pay the same, which coincides with D.