Gabby's scores on her first 4 math test where 87, 92, 76 and 89. what is the minimum score gabby needs to make on the 5th test so that her mean score is at least 85? explain.

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

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.

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)