Hello.
Question 4:
-2.34n = -12.168
Divide both sides by -2.34;
n = 5.2 is your answer to #4 (Answer choice "C.)"For Question 5:
-8c = 56
Divide both sides by -8 to solve for c;
c = -7 (remember your signs!) is your answer for #5 (Answer choice "C.)"
= -2; To solve for this, we need to multiply both sides by -12.168 to isolate and solve for our variable.

= -2; Multiply by -12.168
n = 24.336 (A negative multiplied by a negative results in a positive product.);
Your answer for #3 is n = 24.336 (Answer choice "B.)")I hope this helps!