3 friends go to a restaurant the bill is 30 dollars so they each pay 10 the waitress comes back and says she made a mistake it was only 25 so she gave 5 to the bus boy and said split it between 3 people he didn’t know how to do that so he kept 2 and gave us 3 back. Now that would make all of us pay 9 piece. 9 times 3 is only 27 the bill was 30 dollars and the bus boy kept 2. 27 plus 2 is only 29 what happened too our dollar

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.