What's a variable for 20,000

Solve the system by using the substitution method. x+y=3. Y=x^2-7x+11

A out of 10 trials, a receiver got four cards correct. what is her success rate? what is her expected rate of success, assuming she is only guessing?

What is the simplest form of (9/10) squared 2

3. Jada is making a scale model of the solar system. The distance from Earth to the moon is about 2.389 x 10 miles. The distance from Earth to the sun is about 9.296 X 10' miles.

1 and 5/12 as a decimal 1.416667? Do I add the repeating sign to the 6 or the whole decimal?

Which equation is true? 1. 12x + 18=42 if x=2 2. 15f-7=36 if f=3 3 12x+2=26

In 2 hours a candymaker can produce 80 boxes that each contain 10 pieces of candy. How many pieces of candy does the candymaker produce in 6 hours?

What is the answer to 3 3/8 - 1 5/6=

Solve for x. 6 (x+1) - 2x-1 = (x+15) + (x+16) ?

3*3 - 3 - 3:3 - 3 - =