Bethany needs strawberries to make a cake.
1 answer:
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Use Pythagorean's Theorem to find the length of x. 
so 
and 
. We can simplify that radicand down into a perfect square times a prime number, and that is 
. 4 is a perfect square that can be pulled out as a 2, so the length of x is 
, the choice on the top right.
