A restaurant offers a $12 dinner special that has 7 choices for an appetizer, choices for an entrée, and 3 choices for a dessert. How many different meals are available when you select an appetizer, an entrée, and a dessert?

21x,

where x = number of entrees

Step-by-step explanation:

appetizer choices: 7

choices for an entree: x

choice for dessert: 3

Total number of combinations:

7 * x * 3 = 21x

Since the number of choices of entrees is missing, the best answer you can get is 21x, where x is the number of entrees.

Replace x with the number of entrees to get your final answer.

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.

25% is the answer