Someone help NO LINKS/WEBSITES PLZ and I will mark brainiest if it’s right :)

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

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)?