Juan’s restaurant sells ¼-pound hamburgers. He can buy pre-formed hamburger patties in a pack of 50 for $44.99. His supplier also offers a 10-pound package of ground beef for $32.99. As a third alternative, Juan can buy a 3-pound package of beef chuck for $8.99. Juan’s employee makes $12 per hour. She can form 200 hamburger patties in an hour, and can grind 120 pounds of beef chuck in an hour. Which option is least expensive for Juan

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.