It's A) to find the slope.
The resulted equation is in slope-intercept form which gives the slope (-A/B).
Answer: C.
Explanation: i just took it. and got a 100. :)
Here is a tip, highlight the whole question, copy it, paste it into google, and it will be there on brainly
Since the measure of angles adds up to 180, you should add all of the known angles up and subtract from 180 to find the missing angle. For example: 47+69=116
and
180-116=64 so the measure of the missing angle is 64 degrees
85+42= 127
180-127=53 s the measure of the missing angle is 53