You are missing the ")" so I can only guess where it should be:
7 + 8(3 by the power of 2) - 2 =7 + 8(3²) - 2 =
7 + 8 x 3² - 2 =
7 + 8 x 9 - 2 =
7 + 72 -2 =
77 -2 =
75
83 + 6*7*9 + 1 = 512 + 378 + 1 = 891
83
7 + 33 + 16 + 22 = 78
5 + 1 + 4 + 22 + 7 = 39
7 + 7 + 8 = 22
-29
7/83 = 73/83 or 343/512.
169
7*6 + 22 - 32 = 42 + 4 - 9 = 37
22 plus 3 times 7 is equal to 43.
It depends on the order of operations. 88, minus 22, plus 7, is 73. 88 minus (22 plus 7) is 88 minus 29, which is 59.
It is 9/8 plus 7/3 = 83/24