43.7 % is equivalent to 0.437 .
158 boys, and 163 girls, do this by dividing 321 by two(do get how many of each gender if #s were equal) subtract 2.5 to get boys, and add 5 to that to get girls
2.09, 2.190, 2.37, 2.432
Hope this helps!
-x + -x-1 + -x-2 = -204
-3x=-201
x=-67
-67-68-69=-204
