When capital is plotted on the vertical axis and labor is plotted along the horizontal axis, the marginal rate of technical substitution (mrts) of labor for capital along a convex isoquant

a. equals the negative of the slope of the isoquant.

b. equals the marginal product of labor divided by the marginal product of capital.

c. declines as more and more labor is used.

d. all of the above are correct.

e. only answers a and b are correct.

David consumes two things: gasoline (q 1) and bread (q 2). david's utility function is u(q 1, q 2)equals70q 1 superscript 0.5 baseline q 2 superscript 0.5. let the price of gasoline be p 1, the price of bread be p 2, and income be y. derive david's demand curve for gasoline. david's demand for gasoline is q 1equals nothing. (properly format your expression using the tools in the palette. hover over tools to see keyboard shortcuts. e.g., a subscript can be created with the _ character.)