I think it is 39.27 but double check.
Answer:
Thanks very much ^^
Step-by-step explanation:
This might help explain how to do a very similar problem.... http://www.mathopenref.com/constbisectline.html
Isabel can drive 505.85 miles with a gas tank that holds 15.1 gallons of gas
<em><u>Solution:</u></em>
Given that, Isabel’s car gets 33.5 miles per gallon
Her gas tank holds 15.1 gallons of gas
To find: Number of miles can Isabel drive on a full tank of gas
Let "x" be the miles drive with 15.1 gallons of gas
From given,
1 gallon = 33.5 miles
15.1 gallon = x miles
This forms a proportion and we can solve the sum by cross multiplying

Thus Isabel can drive 505.85 miles on a full tank of gas
The slant height of the pyramid is 756 feet