Which pair of numbers is relatively prime?

A. 21 and 39

B. 12 and 54

C. 10 and 21

D. 15 and 27

A box containing 10 physics textbooks and 3 physics workbooks weighs 50.1 pounds. A box containing 8 physics textbooks and 12 physics workbooks weighs 51.9 pounds. The weight of each box when empty is 1.5 pounds.

4 people figured out how to share 3 oatmeal squares

What weighs more, a pound of feathers or a pound of gold?

How many wires are need to build a circuit A. one B. 2 C. 3 explain

How can I solve 6 (1/4) % to a decimal?

Four friends go mout to dinner and decides to split the bill evenly. each friend orders a soda for 2.00, an entree for 12.99 and they all four share a dessert for 7.99 how much is the total bill

I need to know what is 5: 1 -- 4

April can buy a package of 10 folders for $1.20 or a package of 8 folders for $1.12. What is the unit price, per folder, in each package?

A total of 607 tickets were sold for the school play they were either adult tickets or student tickets there were 57 more students tickets sold then adult tickets how many adult tickets were sold

How do I Write 157.50 earned in 15 hours as a unit rate per 40-hour worksheet