If Annie purchased 2 shirts for $10.00, how much will 4 shirts cost?

Which compound inequality can be used to solve the inequality 3x+2 > 7? -7 < 3x+2> 7 -7> 3x+27 3x + 2 > -7 or 3x + 2 > 7 3x + 2 < -7 or 3x + 2 > 7

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Kerion has a beaded necklace business. she can make 12 necklaces is 2 hours. how long will it take her to make 9 necklaces?