Answer this question:Jed is 10 years older than Matt. In 10 years, Jed will be 25 years old. What is the sum of their present ages?
Jed is 25 - 10 = 15 years old now. So, Matt is 15 - 10 = 5 years old now. Thus, the sum of their present ages is 15 + 5 = 20.
The answer is 20.

Answer this question:Jack and Jill shared the cost of renting a cottage that costs $5 an hour. If they rented it for eight hours, how much did each friend pay?
The total cost of renting the cottage for 8 hours is $5 x 8 = $40. So, each friend pay $40 / 2 = $20 each.
The answer is 20.

Answer this question:Mary had 89 stickers. She used 3 large stickers on the front page of her journal and 7 stickers each to 6 other pages of her journal. How many stickers does Mary have remaining?
Mary added a total of 7 stickers / page * 6 pages = 42 stickers to the 6 other pages. In total, Mary added 3 large stickers + 42 stickers = 45 stickers to her journal. Since she started with 89 stickers, she now has 89 - 45 = 44 stickers left.
The answer is 44.

Answer this question:Jackson has 5 times more money than Williams. Together, they have $150. How much money, in dollars, does Jackson have?
Let x be the amount of money Williams has. Jackson has 5 * x dollars. 5 * x + x = 150. 6 * x = 150. x = 25. Jackson has 25 * 5 = 125 dollars.
The answer is 125.