Assume that when adults with smartphones are randomly selected, 49% use them in meetings or classes. If 7 adult smartphone users are randomly selected, find the probability that exactly 3 of them use their smartphones in meetings or classes

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.