Which expression is equivalent to 3(5 + 4)?
15 + 12
15 + 4
8 + 7
8 + 4

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab