What is the perimeter of the rectangle below shown below 3 7

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

The polynomial 10x3 + 35x2 - 4x - 14 is factored by grouping. 10x3 + 35x2 - 4x - 14 5x )-20 what is the common factor that is missing from both sets of parentheses?

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length