Zach has 48 silver dollars. zach's sister has s more silver dollars than zach. choose the equation that shows how many silver dollars zach's sister has. a) x = 48 - s b) x = 48 + s c) x = s - 48 d) x + s = 48

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5