How do i use a number line to multiply a two digit number by 20

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.

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x