How may bouncy balls went 3/4 of the wall or higher

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.

Witch represents the inverse of the function f(x)=1/4x-12

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?