PLS HELP 2. One side of a square is expressed as 2x + 1. What is the perimeter of the square?

Which is f(5) for the function –2x2 + 2x - 3?

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park is the cost of admission proportional to the amount of people entering the amusement park? explain.

The function p(x) = –2(x – 9)2 + 100 is used to determine the profit on t-shirts sold for x dollars. what would the profit from sales be if the price of the t-shirts were $15 apiece?