Answer:
63 books per capita in the library
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Step-by-step explanation:
Given


Required
Determine the book per capita
To do this, we simply divide the number of books by number of person;





(Approximated)
Hence;
<em>There are 63 books per capita in the library</em>
to find the hypotenuse (or the ramp in question 4) you can use the equation

with a and b being the 3 feet and 9 feet and c being the unknown (ramp).
So if you plug 3 and 9 into the equation, it looks like this.

then square them.

simplify.

take the square root of both sides.

is approx. 9.5 so the answer would be H.
Alternate angles - happy to help!
£.075/5= £0.15
0.15x7= £1.05
7 bananas is £1.05