To determine how many servings Haneef can make with seven cups of couscous, we will start by noting that each serving requires half a cup of couscous.
To find the number of servings, we can use the following calculation:
\[ \text{Number of servings} = \frac{\text{Total couscous}}{\text{Couscous per serving}} = \frac{7 \text{ cups}}{0.5 \text{ cups/serving}} = 14 \text{ servings} \]
Since he can make 14 servings and he has enough couscous to do so (using all 7 cups), the solution is viable.
Thus, the correct answer is:
14 servings, and yes it is a viable solution.