Sara sold half of her comic books and then bought 7 more. She now has

13. How many did she begin with?

Sloane knits scarves and hats to sell at local craft fairs. It takes her 3 hours and 30 minutes to make a scarf and 5 hours and 15 minutes to make a hat.

I have 5 digits. My 4s are worth 4 [10,000s] and 4 * 10. One of my 3s is worth 3,000. The other is worth 1/10 as much. My other digit is a 2. What number am I?

Two cars start at the same time, but travel in opposite directions. One car's average speed is 30 miles per hour (mph). At the end of 4 hours, the two cars are 400 miles apart. Find the average speed in mph of the other car.

What proportion of all first marriages end in divorce? a. two-thirds b. three-quarters c. one-eighth d. one-third?

How does Gary's character reflect the passage's theme? A. The character's transformation shows that the unlikeliest of people can be heroes. B. The character's dialogue reveals that heroes are people of very few words. C.

How many atoms are there in the world

What is x equal? 5x+7

How do you factor a monomial

Simplify 6-3a + 10b^2 - 2a - 4b^2 - 3

There are eight pieces of pizza. Marco ate three-eighths of the pizza for lunch. He ate another two-eighths of the pizza for dinner. How much of the pizza has he eaten in all? A. 1⁄2 B. 3⁄8 C. 5⁄8 D. 7⁄8