Answer this question:Mrs. Amaro has 80 roses in her garden. Three-fourths of her roses are red, one-fourth of the remaining are yellow, and the rest are white. How many of Mrs. Amaro's roses are either red or white?
Mrs. Amaro has 80 x 3 / 4 = 60 red roses. So, 80 - 60 = 20 roses are not red. Then, 20 x 1 / 4 = 5 of those 20 non - red roses are yellow. Hence, 20 - 5 = 15 roses are white. Therefore, 60 + 15 = 75 roses are either red or white.
The answer is 75.

Answer this question:A few friends are making a small movie. They hire a few actors and that cost $1200. They also get food for the 50 people there. Each person gets $3 worth of food. Equipment rental costs twice as much as food and actors combined. They sold the movie for $10,000. How much profit did they make?
The food cost 3 * 50 = $150. So the total cost without equipment rental was 1200 + 150 = $1350. So equipment rental cost 1350 * 2 = $2700. So the total cost was 2700 + 1350 = $4050. That means they made 10000 - 4050 = $5950.
The answer is 5950.

Answer this question:Tim owns rental properties. He decides to replace all the locks and needs to get 3 keys per lock. He owns two apartment complexes which each have 12 apartments. How many keys does he need to make?
There are 2 * 12 = 24 apartments he needs keys for. So he needs 24 * 3 = 72 keys.
The answer is 72.

Answer this question:A farm has 5 less than 9 times the amount of hens as roosters. If there are 75 total chickens, how many hens are there?
Let x represent the number of roosters. Number of hens:9x - 5. Total:9x - 5 + x = 75. 10x - 5 = 75. 10x = 80. x = 8. Number of hens: 9(8) - 5 = 67.
The answer is 67.