Question: Morgan goes to the drive-thru and orders his lunch. He gets a hamburger for $4, onion rings for $2 and a smoothie for $3. If he pays with a $20 bill, how much change does he receive?
Answer with step-by-step thinking: Morgan’s lunch cost $4 + $2 + $3 = $9. If he pays with a $20 bill, he will receive change of $20 - $9 = $11.
So the answer is 11.


Question: In a school garden, there are flowers in different colors. In total there are 96 flowers of four colors: green, red, blue, and yellow. There are 9 green flowers and three times more red flowers. Blue flowers make up to 50% of the total flower count. How many yellow flowers are there?
Answer with step-by-step thinking: There are 3 * 9 = 27 red flowers. 50 / 100 * 96 = 48 flowers are blue. Knowing that, there are 96 - 48 - 27 - 9 = 12 yellow flowers in a school's garden.
So the answer is 12.


Question: The teacher told the class that if they averaged at least 75% on their final exam, they could have a pizza party. Everyone took the exam on Monday, except for William, who was allowed to take it on Tuesday. If there are 30 people in the class, and the average before he took the test was a 74%, what score does he have to get to make sure they get to have a pizza party?
Answer with step-by-step thinking:
Let x be the score that William needs to achieve. Since there are 30 people in the class, there are 30 - 1 = 29 people without him. Since their average was a 74%, this means that (29 * 74 + x) / 30 > = 75. Thus, 29 * 74 + x > = 30 * 75. Thus, 29 * 74 + x > = 2250. Thus, 2146 + x > = 2250. Thus, x > = 2250 - 2146. Thus, x > = 94.
So the answer is 94.