Dante and Erica just returned from a comic bookstore that sells new and used comic books. Dante spend $10.25 on 2 new and 3 old books, and Erica spend 13.75 on 10 used and 3 new
ones. Which system of equations can be used to find how much the new and old books costs?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Worth 15 points handsome jack is buying a pony made of diamonds. the price of the pony is p dollars, and jack also has to pay a 25% diamond pony tax. which of the following expressions could represent how much jack pays in total for the pony? a= p = 1/4 b= p+0.25p c=(p + 1/4)p d=5/4p 0.25p choose 2 answers