If 10 workers produce 50 units and 20 workers produce 80 units, then

the total product of labor is decreasing

the marginal product of labor is higher than the average product of labor

the average product of labor is decreasing

the marginal product of labor is negative

Which of the following is correct?

AC=\frac{\Delta TC}{\Delta q}AC=qTC

AP_L=\frac{\Delta TP}{\Delta L}APL=LTP

AFC=\frac{TVC}{q}AFC=qTVC

TVC=TC-TFCTVC=TCTFC

Changes in consumer income cause

slope changes in the budget line

indifference curves to become steeper

a change in the indifference curve with no change in the budget line

parallel shifts of the budget line