Answer:
8 - 12
Explanation:
to determine which expression has the greatest value, we must first solve each expression
-18 + 6 = ?
-12
8 - 12 = ?
-4
-9 - 10 = ?
-19
6 - 8 = ?
-2
therefore, after solving, we can see that the greatest value, is -4
so the expression that has the greatest value is "8-12"
i believe that greatest value is the biggest number farthest to the left (in the answer), which in this case is -4