Plz answer my question i will give 100 point and brainliest please Set up equations and solve them to find the unknown numbers in the following cases:
Agnes thinks of a number. If she adds 19 to it and divides the sum by 5, she
will get 8.

Aschool typically sells 500 yearbooks each year for 50 dollars each. the economic calls does a project and discovers that they can sell 100 more yearbooks for every $5 decrease in price. the revenue for yearbook sales is equal to the number of yearbooks sold times the price of the yearbook. let x represent the number of $5 decrease in price. if the expression that represents the revenue is written in the form r(x)=(500+ax)(50-bx). to maximize profit, what price should the school charge for the yearbooks? what is the possible maximum revenue? if the school attains the maximum revenue, how many yearbooks will they sell?

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

How many solutions does the nonlinear system of equations graphed below have?