Deborah playlist on her mp3 player had a variety of songs on it. She had 21 country songs, 18 alternative songs, 16 pop songs, and 18 rock songs. Write and evaluate an expression using only addition.

Hunter had seven gallons of water in the refrigerator. Of those, two and one-fourth gallons were spring water and one and one-fifth gallons were filtered water. How many gallons of water were not spring or filtered?

An iPad for $480 and paid $31.20 in sales tax. What was the sales tax rate?

1. A square floor tile has an area of (x2 + 8x + 16) in2. The side length of the tile is of the form cx + d, where c and d are whole numbers. a. Find the expression for the side length of the tile. b.

On a map 180 miles are represented by 4 inches. how many miles are represented by 6 inches

You buy a computer for $1200. The value of the computer decreases by 30% each year. Find the value of the computer after 4 years.

Solve the quadratic equation by completing the square. 4x2 + 8x - 7 = 0

Prime factorization practice All factors 1. - 25 2. - 49 3. - 7 4. - 13 5. - 24 6. - 48 7. - 168

Anoki bought 360 millimeters of fabric. How many centimeters of fabric does Anoki have?

What is 32.697 rounded to the nearest one?

Word problem to represent 0.90