A line segment is a portion of a line with a measurable length. The midpoint of a line segment is the point exactly halfway between the endpoints. The midpoint bisects (cuts in half) the line segment.

A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.

To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the equal sign and the answer on the other.

2b + 4 = \( \frac{b}{5} \)
5 x (2b + 4) = b
(5 x 2b) + (5 x 4) = b
10b + 20 = b
10b + 20 - b = 0
10b - b = -20
9b = -20
b = \( \frac{-20}{9} \)
b = -2\(\frac{2}{9}\)

To multiply monomials, multiply the coefficients (the numbers that come before the variables) of each term, add the exponents of like variables, and multiply the different variables together.

(5a)(7ab) + (3a²)(3b)
(5 x 7)(a x a x b) + (3 x 3)(a² x b)
(35)(a¹⁺¹ x b) + (9)(a²b)
35a²b + 9a²b
44a²b

The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 70° - 34° = 76°