Answer:
The answer is C.
Step-by-step explanation:
Remember, to find the mean of some scores, you must add all the scores together, then you must divide by the number of scores you added. In this case, you would divide by four, because you had four numbers you added to gether.
1. Commutative property of multiplication
IM SO SORRY IF IM WRONG
9/2 = 81/a....9 kids meals to 2 adult meals = 81 kids meals to a adult meals
cross multiply
9a = 2(81)
9a = 162
a = 162/9
a = 18...so there were 18 adult meals
ratio is : 81/18
Answer:
the answer is b
Step-by-step explanation:
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