The answer to the question is 0.048
The answer is C.
Hope that helps you.
You use the Pythagorean theorem which is a^2+b^2=c^2
So....
.8^2+.6^2=c^2
.64+.36=c^2
1=c^2
1=c becaaue the square root of one is one
There are 48 yellow tulips because 76-28 =48