PLEASE HELP BARBZ ASAP

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

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 of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u