Solve each equation for the variable 7x-2=40

The heaviest 16% of all men in weight weigh more than how many pounds ?

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

What is the value of x in the this question ?