Can somebody plz help answer these questions (only if u know how to do this) thx sm! :3 if it’s possible to measure it too! WILL MARK BRAINLIESY WHOEVER ANSWERS THESE FIRST :DDD

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.