What is the simplest form of the expression? sqrt 2 - sqrt 6 / sqrt 2 + sqrt 6

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle

For each proportion find the unknown number x 1/5/8=×/15

On the day a coffee shop first opened, it had 140 customers. 65% of the customers ordered a large coffee. how many customers ordered a large coffee? enter your answer in the box.