Simplify –2x3y × xy 2. a. –2x3y4 b. –3x4y3 c. –12x4y3 d. –2x4y3

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)?