What values of x and y will make the equation AB= I true

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

What expression is equivalent to 1/2(2+3x-6)

Jacks bank statement shows an account balance of -$25.50. which describes the magnitude, of size, of the debt in dollars