A jar contains red, white, and blue marbles. One-fifth of the marbles are red and one-fourth of the marbles are white. THere are 20 red marbles in the jar. HOw many blue marbles are in the jar?

If x+y = 7 and 2x+3y = 17 then what is x and what is y?

To find the sum of 4/9 and 7/12, Mario rewrites the fraction as 8/36 and 21/36. His answer is 29/36. Is Mario right? If not, show his error and correct it.

What is this form called? a^ 2 + 2ab + b^ 2

If two plygons are similar then the corresponding sides must be

Sam puts $1.25 into his piggy bank in January 2013. Each month he increases how much he puts in by 4 cents. How much money will he put in his piggy bank in April 2016? A) $157.25 B) $16.85 C) $3.35 D) $2.81

14285714/1000000000 simplified

What is 23 * 47 rounded to the nearest hundred

Mae king earns a weekly salary of $325 plus a 6.5% commission on sales at a gift shop. how much would she make in a work week if she sold $4,800 worth of merchandise?

A color printer will print 8 pages per minute. how many minutes will it take to print a report that has 136 pages?

A company is selecting students for interviews at the career fair. The number of students selected from university A is given by Rx) = 4x + 5, where x represents the number of days of the fair.