The point at which a company costs equal it’s revenues is the break even point. c represents the cost, in dollar, of x units of a product and r represents the revenue in dollars from the sale of x units. find the number of units that must be produced and sold in order to break even. that is, find the value of x for which c=r.
c= 14x+400 and r= 16.5x
how many units must be produced and sold in order to break even?

Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. kevin spins the spinner 180 times. kevin determines about how many times the spinner will land on red or green, and his work is shown below. -kevin has the formula reversed; it should be the total number of sections over the number of red or green sections. -kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections. -kevin should multiply by the number of sections in the spinner rather than the total number of spins. -kevin calculated the prediction correctly and did not make any mistakes.