Take the product of 6 and 7 from 50.

Hello JeezMarks,

(6 ) (7 )− 50

= 42 − 50

= −8

I added a screenshot with the complete question along with its diagram


∠1 = 163°

Explanation:
1- getting angle 2:
We know that ∠2 and the 17° form a straight angle. This means that their sum is 180°.
Therefore:
180 = 17 + ∠2
∠2 = 180 - 17
∠2 = 163°

2- getting angle 1:
We are given that lines a and b are parallel.
This means that ∠1 and ∠2 are alternating angles which means that they are equal in measurement.
We have calculated that ∠2 = 163°
This means that:
∠1 = 163°

Hope this helps :)