Matt is making sandwiches to sell
at a band contest. It costs 90 cents to make each sandwich plus a one-time cost of $24 for packaging. He will sell them for $2.50. How many sandwiches does he need to sell to break even?

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

Find │–14│ a. 14 b. –14 c. start fraction 1 over 14 end fraction

Solve this 364x-64x=300x and 12(x2–x–1)+13(x2–x–1)=25(x2–x–1)