In the park, the first rose bush has 12 red flowers. The second rose bush has 18 pink flowers. The third rose bush has 20 yellow flowers. The fourth rose bush has 8 orange flowers. For her vase, Lorelei picks 50% of the red roses, 50% pink roses, 25% of the yellow roses, and 25% orange roses. How many roses are in her vase? Give the rationale and then the answer.
Let's think step by step. The number of red roses Lorelei picks is 12 x 50% = 6 roses. The number of pink roses Lorelei picks is 18 x 50% = 9 roses. The number of yellow roses she picks is 20 x 25% = 5 roses. The number of orange roses she picks is 8 x 25% = 2 roses. The total number of roses in her vase is 6 + 9 + 5 + 2 = 22 roses.. The answer is: 22.

An animal shelter is having a pet adoption event where owners can adopt an animal for just the cost of the vet fees. Vet fees for dogs are $15, and vet fees for cats are $13. Eight families adopt dogs and three adopt cats. The vet donates a third of the fees they were paid for the adoption checkups back to the shelter. How many dollars did the vet donate? Give the rationale and then the answer.
Let's think step by step. The vet made 8 * 15 = $120 in dog vet fees. The vet made 3 * 13 = $39 in cat vet fees. The total vet fees were 120 + 39 = $159. The vet donated 1 / 3 of the fees, so they donated 159 / 3 = $53 back to the shelter.. The answer is: 53.

In a store, an Uno Giant Family Card costs $12. When Ivan bought ten pieces, he was given a discount of $2 each. How much did Ivan pay in all? Give the rationale and then the answer.
Let's think step by step. Instead of $12 each, an Uno Giant Family Card costs $12 - $2 = $10 each. Ivan paid $10 x 10 = $100 for the ten pieces Uno Giant Family Card.. The answer is: 100.