Why? (there's only one right answer. i will mark 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.

How can symbols and absolute value you to order sets of integars

According to the nebular theory, the planets formed from a process called . after our protosun formed, remaining dust and gas from the nebula collided, combined, and gravitated together to form the planets.