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Yanka [14]
2 years ago
13

Danica is arranging flowers for a party. On each table, t, there will be a vase of 9 flowers and 3 bowls of flowers with f flowe

rs inside. Danica needs an additional 12 flowers for a cake topper. This situation can be written as the following expression:
9t + (3f)t + 12

How many flowers should Danica purchase if she has 21 tables with 3 flowers in each bowl?
69
189
378
390
Mathematics
2 answers:
Firdavs [7]2 years ago
5 0
On this question, we can use the order of operations. ( pemdas )

First, we must fill in the missing numbers.
9*21 + (3*3)21 + 12

Start in the parentheses.
(3*3)21 = 9*21 = 189
189+189+12

The rest is just addition now!
189+189+12=390

390 is the correct answer.
Aleksandr [31]2 years ago
5 0

The correct answer is D. 390

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<h2>Greetings!</h2>

Answer:

B and E

Step-by-step explanation:

The rules of indicies states:

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To find the other correct value, you can divide the two fractions as stated in the question:

3^{-8} by 3^{-4} = \frac{1}{81}

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<h2>Hope this helps!</h2>
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