How much is a $4 sandwich with a sales tax of 6%? (round your answer to the nearest cent) *

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

Abaseball team drinks 10/4 gallons of water during a game. which mixed number represents the gallons of water consumed? a) 1 1/2 gallons b) 2 1/2 gallons c) 2 3/4 gallons d) 3 1/2 gallons

Yvaries directly as x. y =90 when x=6. find y when x=13