What is -7 + -9 A. -16 B. -2 C. 2 D. 16

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

Select the lengths in centimeters that would form a right triangle

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30