Final answer:
Nasser is making 10 flapjacks with 1.1 kg of sugar according to the recipe that yields 10 flapjacks.
Step-by-step explanation:
The question pertains to a recipe calculation where the amount of sugar used is correlated with the number of flapjacks that can be made. Since Nasser is using 1.1 kg of sugar to make flapjacks and the recipe yields 10 flapjacks, the answer to how many flapjacks Nasser is making according to the recipe is c) 10. We assume that 1.1 kg of sugar is the amount needed for the entire recipe, and therefore, no further calculations are necessary if the recipe's sugar amount is 1.1 kg for 10 flapjacks.