B = {x|x ∈ N and 1 ≤ x < 9}

What should be done to solve the equation? x+14=21 add 14 to both sides of the equation. subtract 14 from the left side of the equation. add 14 to the left side and subtract 14 from the right side of the equation. subtract 14 from both sides of the equation.

Multiplying an even number of negative numbers gives an answer that is choose from:

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?