Please need ASAP please

An equation representing lyle’s hedge-trimming business is a = 12n - 300 where a is the amount of profit or loss in dollars and n is the number of hedges trimmed. how would the graph of lyle’s business change if the equation a = 10n - 300 represented his business? the graph would be flatter. the graph would be steeper. the graph would start closer to the origin. the graph would start lower on the y-axis.

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply