Required

1. The distance in kilometers to Proxima Centauri, the closest star to the Earth, is

39,900,000,000,000. Write this in scientific notation.

I asked this earlier and got no answer. Will give brainliest The area of a square in 225 inches squared. a. Write a quadratic equation that can be used to find the dimensions of the square. b. Solve the equations. What are the dimensions?

Is 12/15 greater than 12/14

In a library, 13 out of 65 books on a bookshelf are non-fiction. If the library has 4,000 books total, how many of those are non-fiction? (use rule of four)

My brother is 5 years older than me. My sister is 3 years younger than me. d How old will my sister be when I am n years old?

A contractor purchases 4 dozen pairs of padded work gloves for $58.56 SheShe incorrectly calculates the unit price as $14.64 per pair for the expense report. What is the correct unit price? What is the error?

If 6t-3=-177 what is the value of the variable

What is the sum? - 0.3 + (-1.8)

Alejandro has 5 7/8 pizzas left over from a party. Is 1/4 of a pizza is a serving how many servings does Alejandro still have left?

Simplify 5 (R + 2) - 6. A. 5R + 4 B. 5R - 4 C. 5R - 6

Meg started her trip with 11 1/2 gallons of gas in her car's tank. She bought an additional 6 4/5 gallons on her trip and arrived back home with 3 3/10 gallons left. How much gas did she use on the trip?