If the mean for a sample of 8 people was 10 and the mean for a second sample of 4 people was 20, what would the weighted mean be equal to?

Which values of x will make the expression 6x^2-54/5x^2-20 equal to 0? Check all that apply. -9 -3 -2 0 2 3 9

What fractional part of 84 is 14?

If n does not equal 4, which of the following is equivalent to n^2/n-4 + 4n/4-n A) n B) n (n+4) / n-4 C) n/n-4 D) n+4/n-4

The cube root of 2x2x2x73

Estimate the area of the wall

Purple paint is made with a 16:3:1 ratio of white paint:blue paint:red paint. How much white paint, in gallons, is needed in order to make one gallon of purple paint? Express your answer as a common fraction.

Stand A $3.75 for 2.5 lbs Stand B $5.60 for 1.75 lbs Stand C $5.40 for 1.8 lbs Stand D $9.35 for 2.2 lbs Which stand offers the best deal?

Jessica purchased a DVD that was on sale for 12% off. The sales tax in her county is 3%. Let y represent the original price of the DVD. Write an expression that can be used to determine the final cost of the DVD.

Dan and his family are traveling to North Carolina. On Monday, they drove 3/8 of the trip and on Tuesday they drove 4/8 of the trip. How much of the trip did they drive so far?

Is - 2 (x+11) = -2x-22 a distributive property