Last week, donnell practiced the piano 3 hours longer than marcus. together, marcus and donnelly practiced the piano for 11 hours. for how many hours did each young man practice the piano?

What is the measure of angle afe? 79 81 91 99

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.

The box plots show the average speeds, in miles per hour, for the race cars in two different races. which correctly describes the consistency of the speeds of the cars in the two races?