Trade agreements help to lower barriers to trade

The demand for salt is relatively price inelastic, while the demand for pretzels is relatively price elastic. How can you best explain why?

What will be an ideal response?

If 15 workers produce 100 license plates, 16 workers produce 120 license plates, and 17 workers produce 130 license plates, then

a. diminishing marginal returns have not set in because the marginal product is positive b. the marginal product of the seventeenth worker is 130 c. diminishing marginal returns must begin with the sixteenth worker d. the marginal product of the sixteenth worker is greater than the marginal product of the seventeenth worker e. the marginal product of the fifteenth worker must be 20