A piano has 88 keys. The ratio of white keys to black keys is 13.9. How many black keys does a piano have?

2 (0.5q+1) = -3 (2q-1) + 4 (2q+1)

What js the solution to the inequality 1/4+x<5/6

Do 3/5 and 9/15 equal the same Whole?

If x/-4=8 then what is x equal to

What does the spread mean

Mr. jacobs wanted to purchase a pair of pants. he only had 25.00. When he arrived at the store he saw a sale sign that read 1/4 off at of 40.00. Does Mr. jacobs have enough money to purchase the pants? show your work.

How many cubic blocks of side length 1/7 inch would it take to fill a cube with a side length of 3/7 inch?

Write a world problem that can be solved by drawing an array. then draw the array and solve the problem

If I Have 55, then times that by three then divide it by 9, then add 16, What Is My Answer?

Cheese sticks that were previously priced at "5 for $1" are now "4 for $1". Find the percent increase in the price per cheese stick.