The CD Recyclery sells used CDs for $10 each and buys them for $6 each. Bob paid $20 when he bought and sold the same number of CDs. How many CDs did he buy?

mariam measured the distance for 8 wavelengths of visible light as 5,600 nanometers. what is the distance for 1 wavelength

Write (26 + 16i) - (26 - 7i) as a complex number in standard form. A. 52 - 9i B. 52 - 23i C. - 9i D. 23i

65,823 + b = 81,000

What expressions are equivalent to 1/36?

The following two-way table shows the number of students of a school who have a video game and/or have a laptop: Have Video Game Do Not Have Video Game Total Have Laptop 15 50 65 Do Not Have Laptop 50 15 65 Total 65 65 130 Based on the table, how

What is the remainder when 23,870 : 38

What is the least common multiple of 6 and 10

Each package of kiwis contains 8 kiwis. How is the number of kiwis related to the number of packages?

What is the equivalent decimal of 1 3/4

What is the relationship of the scale factors