She had 60 pairs of shoes before selling any
Answer:
The statement is true
see the explanation
Step-by-step explanation:
we have the proportion

we know that
To solve the proportion multiply in cross
so


therefore
The statement is true
14x30=520. So, 520 divided by 24 = 21.6 . So, that means that you will need 22 packages of balloons and you will have 8 left over
Answer:
1
Step-by-step explanation:
Answer:
The formula 
Step-by-step explanation:
<em><u>Explanation</u></em>
Given W = x² - 2 y z
2 y z = x² + W
Dividing '2z' on both sides , we get

⇒ 