Atriangle has angles measuring 42° and 62°. what is the measure of the triangle's third angle

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

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

Y= 4x + 3 y = - 1 4 x - 5 what is the best description for the lines represented by the equations?