J+N=28
N+M=29
J+M=31
Find the values of all of them
(Hint : M is the greatest

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

Write two subtraction equations that are equivalent to 5 + 12 = 17.

What is the value of x in the equation 2(x-4) = 4(2x + 1)?