300 miles is equal to how many yards
= 528000
Hope this helps!
It would be 2 since that would give you the trio mail if expanded
15 is 3,5 and 5 is just 1 and 3 is 1
The value of the expression
is 
<h3>How to evaluate the sum?</h3>
The attachment represents the proper format of the question
The summation expression is given as:

Expand the radicands

Evaluate the square roots

Add the like terms

Hence, the value of the expression
is 
Read more about expressions at:
brainly.com/question/723406
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