Please solve problem! Photo attached!

What is the value of the expression below? 148+(-6)| + |– 35= 7|

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)?

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section