The Alverezes are trying to decide which of two catering companies to hire for their anniversary party. Marvelous Meals charges $400 plus $55 per person. Posh Parties charges $750 plus $45 per person. Write an equation for each catering company. Let y represent cost and x represent the number of people. At what number of guests would the cost of hiring either caterer be the same? What is the cost?

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.