A farmer can get two dollars per sack of potatoes on the first of July and after that the price drops by 1 cents per sack per day. On July 1st the farmer has 80 sacks of potatoes in the ground. She estimates that the crop is increasing by one sack per day. When should she harvest to get the most money

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)