81 billion miles in scientific notation

5 plus the difference of 9 and 4

If the sum of twice a number and - 7 is increased by 8 the result is 16 greater than the opposite of the number. What is the number?

What is polynamials?

A5 = - 68 and r=-0.5; find a1

Twenty polar bears live at the zoo. in four weeks, they eat 9232.8 pouns of food altogether. Assuming each bear is fed the same amount of food, how much food is used for one bear for a week

Solve the equation. Then check your solution. 1.6a=-9.12 a. -7.52 c. -10.72 b. -5.7 d. 10.72

The manager of an Electronics Store gets an email from the manufacturer of Flat Screen TVs that says 8% of the TVs they sent them are defective and will need to be returned.

Dymin had a lot of boxes ready for moving. She went out and bought seven more boxes. A week later her little brother destroyed half of them. There are now only 22 boxes left. How many did she start with?

5 (x+8) + 3 simplify it

Kayla used 4/14 of her allowance to buy yogurt and 8/14 of her allowance to go skating. What fraction of her allowance does she have left? Explain your thinking.