We have a question: Chip takes 2 pages of notes every day, 5 days a week, for each of his 5 classes. His notebook paper comes in packs of 100 sheets of paper per pack. After 6 weeks, how many packs of notebook paper will Chip use?
And an answer: 3
So how you got the answer?
He takes 2 pages of notes every day for each of his 5 classes so that's 2 * 5 = 10 pages of notes. He takes 10 pages of notes every day for 5 days so that's 10 * 5 = 50 pages of notes. If he takes 50 pages of notes every week for 6 weeks that's 50 * 6 = 300 pages of notes. His notebook paper comes 100 pages per pack and he has taken 300 pages of notes so he used 300 / 100 = 3 packs of notebook paper.

We have a question: Darryl is an inventor who just designed a new machine. He had to pay $3600 for the parts to construct the machine, and $4500 for the patent he applied for once he built it. If the machine sells for $180, how many machines does Darryl need to sell to break even after the costs?
And an answer: 45
So how you got the answer?
Darryl paid 3600 + 4500 = $8100 in costs for the parts and patent. Thus, Darryl needs to sell 8100 / 180 = 45 machines to break even.

We have a question: A shopping center sells T-shirts at $8 each, a sweater at $18, and a jacket at $80. The jacket is on sale with a 10% discount. The sales tax is 5%. Kevin wants to buy six T-shirts, four sweaters, and five jackets for his children. How much does Kevin have to pay for all the items, including the sales tax?
And an answer: 504
So how you got the answer?
The six T - shirts cost 6 x $8 = $48. The four sweaters cost 4 x $18 = $72. And five jackets normally cost 5 x $80 = $400. So, a discount of 10 / 100 x $400 = $40 for the five jackets. Thus, the selling price of the five jackets is $400 - $40 = $360. Hence, the total cost of all the items is $48 + $72 + $360 = $480. The sales tax is equal to 5 / 100 x $480 = $24. Therefore, Kevin has to pay $480 + $24 = $504. including the sales tax.