Nineteen more than a number is less than 42

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.

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

43lbs of tomatos cost $387. how much would 41lbs cost