The profit made by selling x items is given by the following function P(x) = -2000 + 220x - 2x^2
a) What is the profit of selling 55 items?
b) Compute the number of items sold to attain zero profit.

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

Afamily of five rents a kayak and splits the total time, k, equally. each family member spent less than 25 minutes kayaking. which values can be used to complete the math sentence below so that it accurately represents the situation? intro done

Determine which postulate or theorem can be used to prove that lmn =nmo