Melanie has twice as many cats as Annie, and Annie has three times fewer cats than Jacob. If Jacob has 90 cats, how many cats does Melanie have?
Let's think: Annie has 90 / 3 = 30 cats. Melanie has 30 * 2 = 60 cats.. The answer is: 60.

Jenny lives 5000 feet from her school, and every day she walks home. One day as she was walking home from school, she dropped 1 kernel of popcorn per 25 feet she walked. Later that evening, a squirrel came and ate one-quarter of the popcorn Jenny had dropped on her way home. If Jenny walks to school the following morning and counts the popcorn on the ground, what is the total number of popcorn kernels she will find remaining on the ground?
Let's think: She originally dropped 5000 / 25 = 200 kernels of popcorn. The squirrel ate 200 / 4 = 50 kernels of popcorn. Therefore, 200 - 50 = 150 kernels of popcorn remain on the ground.. The answer is: 150.

Jenna wants to buy a concert ticket that costs $181, plus five drink tickets for $7 each. If Jenna earns $18 an hour and works 30 hours a week, what percentage of her monthly salary will she spend on this outing?
Let's think: First find the total cost of the drink tickets: 5 tickets * $7 / ticket = $35. Then add that cost to the cost of the ticket to find the total cost: $35 + $181 = $216. Then multiply Jenna's hourly rate by the number of hours she works each week to find her weekly earnings: $18 / hour * 30 hours / week = $540 / week. Then multiply her weekly earnings by the number of weeks she works each month: $540 / week * 4 weeks / month = $2160 / month. Then divide the cost of the concert by Jenna's monthly earnings and multiply by 100% to express the answer as a percentage: $216 / $2160 * 100% = 10%.. The answer is: 10.

Megan has read 32 books this year. Kelcie has read 1/4 the amount of books that Megan has read. Greg has read 9 more than twice the number of books that Kelcie has read. How many books total have Megan, Kelcie, and Greg read?
Let's think:
Kelcie: 32 / 4 = 8 books. Greg: 9 + 2(8) = 25 books. Total:32 + 8 + 25 = 65 books.. The answer is: 65.