. 87.8
. 17.3
------------
.105.1
As can be seen by the above sum, 105.1 is reasonable.
187
450
173
174
301 + 173 + 427 = 301 + (173 + 427) = 301 + 600 = 901
148 + (216 x 351) - 173 = 75791
x2 + 4 = 173 x2 = 173 - 4 = 169 x = sqrt(169) = 13 or -13
919
173 plus 127 equals 300
280
88+85 = 173
63 plus 47 plus 42 plus 21 is equal to 173.