Answer:

Step-by-step explanation:
Given
See attachment
Required
The probability that a 7th grader selected will play guitar.
From the attachment, we have:


7th graders that can play guitars are:

So, the probability is:


Answer:
C
Step-by-step explanation:
You would write the following proportion: 4/12= 180/x
When you solve the proportion the answer is 540, which means that 12 game packet costs $540.
Answer:
A
Step-by-step explanation: