What is the quotient 1/3 ÷ (− 1/3 )? A) -1 B) 1 C) - 1/9 D) 1/9

If the measure of angle 1 is 110 degrees and the measure of angle 3 is (2 x+10 degree), what is the value of x?

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?

X+y=-4 x-y=2 use elimination with adding and subtraction