What is the perimeter of the regular heptagon below?

The height of a triangle is 4 in. greater than twice its base. the area of the triangle is no more than 168 in.^2. which inequalitycan be used to find the possible lengths, x, of the base of the triangle?

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0