Answer a funnier one and you get BRAINLIEST :)

Firms use marginal analysis to determine prices by a) changing prices in accordance with information from retailers. b) using comparisons with strong competitors to position prices accordingly. c) examining the effect on revenue of small changes to the price of one item. d) trying to minimize production costs by using better and more efficient methods.

What is the top speed in a parking lot? a. 10 mph b. 20 mph c. 25 mph d. 30 mph

Compare and contrast the environmental consequences of reliance on coal with reliance on petroleum.