Answer this question:Alani earned $45 for 3 hours of baby-sitting. At the same rate, for how many hours would she need to baby-sit to earn $75?
The rate is $45 / 3 = $15 / hr. She would need to baby - sit for $75 / $15 = 5 hours.
The answer is 5.

Answer this question:There were sweets on the table. Jack came and took half of all the candies and 4 more candies. Then Paul came and took the remaining 7 sweets. How many sweets were on the table at first?
Jack took 4 more candies than the half, and Paul took the rest, which means 7 + 4 = 11 candies were half of all candies. That means at first there were 11 * 2 = 22 candies.
The answer is 22.

Answer this question:Naomi is doing the wash. First she makes piles of different types, with one pile for towels, one for sheets, and one for clothes that need to be washed on the gentle cycle. The clothes take 30 minutes to wash. The towels take twice as long as the clothes to wash. The sheets take 15 minutes less time to wash than the towels. How many minutes total will it take for Naomi to wash everything?
The clothes take 30 minutes to wash and the towels take twice as long, 30 x 2 = 60 minutes to wash the towels. The sheets take 15 minutes less than the towels, 60 - 15 = 45 minutes to wash the sheets. It takes 30 minutes + 60 minutes + 45 minutes = 135 minutes to wash everything.
The answer is 135.

Answer this question:Vaishali has 4 hats, each with three stripes. She also has three hats with four stripes each, six hats with no stripes, and another two hats with 5 stripes each. What is the combined total number of stripes Vaishali has on all of her hats?
Four hats, each with three stripes, is 4 * 3 = 12 stripes. Three hats with four stripes each is 3 * 4 = 12 stripes. Six hats with no stripes is 6 * 0 = 0 stripes. And two hats with 5 stripes each is 2 * 5 = 10 stripes. The combined total number of stripes Vaishali has on all of her hats is 12 + 12 + 0 + 10 = 34 stripes.
The answer is 34.