Answer:
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Step-by-step explanation:
Given

Required
Determine 
We know that:

This gives:


Collect like terms


Take square roots


By tan identity


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$22.50 is the cost of 15 tomatoes
<u>0.09</u> = <u>1 </u>
0.9 10
I hope this helps.
Whats the question? how many is she buying? or how many can she afford?
Answer:
It would be 14 because since each book is 3.5cm thick times that by 4 and get 14.