Solving literal Equations

I’m not sure how to do the bottom one

s = 180n - 300

Step-by-step explanation:

Multiply both sides by 180 as you would need to use inverse operation to make s the subject.

This would be 180n = s + 300.

Minus the 300 on both sides.

s = 180n - 300.

Hope this helps :)

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer