Answer:
use photomath the app for the answer
Step-by-step explanation:
A. He feels tired and sick because the focus on the mechanical measurements of stars is not satisfying to him.<span>
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Answer : The cost of 10 balls will be, 13.5 dollars
Step-by-step explanation :
As we are given the following expression:

where,
P = total price (in dollars)
n = number of balls used
Given:
n = number of balls used = 10
Now we have to determine the cost of 10 balls.




Thus, the cost of 10 balls will be, 13.5 dollars
Answer:
18.5÷11.99 is correct the answer is most likly option B
That’s the answers hope this helps.