The combined age of john and mary is 20 years. in 2 years, john will be five times as old as mary. how old is john at this time?

Jack gets $20 a month for an allowance. Jack wants to save $6 for the school dance, buy a comic book for $3.50, and buy 2 ice cream cones at $1.25 each. If he puts this money aside, how much money does he have left to spend?

What is the median of the scores shown in the stem-and-leaf plot? Test Scores Stem Leaves 6 2 7 0, 6, 8, 9 8 3, 5, 8, 8, 9 6, 6, 7, 7, 8, 8. 9 10 0, 0 6|2 = 62 percent 96 92 91 88

Which equation best expresses the revenue for selling n books at $12.50 each? A) r+n=12.5 B) r=n+12.5 C) r=12.5/n D) r=12.5n

Round 0.578 to the nearest tenth

Hundred and fifty divided by twenty five

A rectangular deck is 12 ft by 14 ft. When the length and width are increased by the same amount, the area becomes 288 sq. ft. By how much were the dimensions increased?

Line p has a slope of - 3/4. Line q is parallel to line p. What is the slope of line q?

A local charity sponsors a 5K race to raise money. It receives $25 per race entry and $5,000 in donations, but it must spend $5 per race entry to cover the cost of the race.

Differentiate sinx cosx

A zebra eats 28 pounds of grass in a day. How many pounds of grass would 14 zebras eat in a day? A. 2 pounds B. 42 pounds C. 392 pounds D. 492 pounds