Find the value of x. Then the measures of angle B and C.

Afruit stand has to decide what to charge for their produce. they need $10 for 4 apples and 4 oranges. they also need $15 for 6 apples and 6 oranges. we put this information into a system of linear equations. can we find a unique price for an apple and an orange?

Does the point (1, sqrt 7) lie on circle shown.

Bring the fraction a/a-4 to a denominator of 16-a^2