The answer is 163. Simply add the numbers together arithmetically as you would for the problem two plus two. To check your work, a calculator is the best option.
Pi plus 86 equals 89.14
no it equals 228
-12n - 9 = 77 Therefore, -12n = 77+9 = 86 Therefore, n = 86/-12 n = 7.16 recurring (that is, 7.16666..)
127
it is 91
86 !
400 + 86
77
124
7 + 21 + 2 + 86 + 4 = 120
77
The answer is 1166.