Jason sold half of his comic books and then bought eight more. He now has twelve. How many did he begin with ?

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

The expression 1.01*1.005(^t) gives the amount of money, in thousands of dollars, in carter's savings account (t) years after he opens it. what does 1.01 represent in this expression?