All points on the circle are the same distance away from the circles

Find the value of 1715⋅211.though these numbers aren't quite as nice as the ones from the example or the previous part, the procedure is the same, so this is really no more difficult. give the numerator followed by the denominator, separated by a comma.

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

If square root x = -7, then x= -49 true or false