[Question]Bill is laying power cable for a new neighborhood. There are going to be 18 east-west streets that are 2 miles long and 10 north-south streets that are four miles long. It takes 5 miles of cable to electrify 1 mile of street. If cable costs $2000/mile, what is the total cost of cable for the neighborhood?
[Answer]First find the total distance of the east - west streets: 18 streets * 2 miles / street = 36 miles. Then find the total distance of the north - south streets: 10 streets * 4 miles / street = 40 miles. Then add the number of miles from each type of street to find the total distance: 36 miles + 40 miles = 76 miles. Then multiply that number by 5 to find the number of miles of cable needed: 76 miles street * 5 miles cable / mile street = 380 miles of cable. Then multiply that number by the cost of one mile of cable to find the total cost: 380 miles * $2000 / mile = $760,000. The answer is 760000.

[Question]Dana has 15 more pencils than Jayden, who has twice as much as Marcus. How many more pencils does Dana have than Marcus, if Jayden has 20 pencils?
[Answer]Dana has 15 more pencils than Jayden who has 20, so Dana has 20 + 15 = 35 pencils. Jayden has 20 pencils which is twice as much as Marcus's so Marcus has 20 / 2 = 10 pencils. Dana has 35 - 10 = 25 more pencils than Marcus. The answer is 25.

[Question]Gillian’s phone bill is usually $50 a month. If the monthly bill increases by 10%, what will be her phone bill for the entire next year?
[Answer]Her new monthly bill will be $50 * 110 / 100 = $55. Her phone bill for the entire year will be $55 * 12 = $660. The answer is 660.

[Question]Nori had 4 boxes of crayons with 8 crayons in each box. She gave 5 crayons to Mae and also give some crayons to Lea. How many more crayons did she give to Lea than Mae if she has only 15 crayons left?
[Answer]
From the 4 boxes, Nori had 8 * 4 = 32 crayons. After giving 5 crayons to Mae, she had 32 - 5 = 27 crayons left. If she only has 15 crayons now, this means she gave Lea 27 - 15 = 12 crayons. Hence, Lea has 12 - 5 = 7 more crayons than Mae. The answer is 7.