Part A: 176
Part B: First, I did is multiple 3 to the common denominator by 4 times with the same number and that would give you a positive number of 81, then I combined 81 with 95 and your solution is 176.
Explanation:
Part A:
-3^4 = -3x-3x-3x-3
-3^4 = 81
95+81 = 176