Which equation represents this ellipse?
A (x - 6)2/49 + (y-2)2/9=1
B (x+6)2/49 + (y+2)2/9=1. C (y-6)2/49 + (x-2)2/9=1. D (y+6)2/49 + (x+2)2/9=1

With these 5 geometry questions! pls 1.)quadrilateral abcd is inscribed in this circle. what is the measure of ∠a ? enter your answer in the box.°2.)quadrilateral abcd is inscribed in a circle. what is the measure of angle a? enter your answer in the box. m∠a= 3.)quadrilateral abcd is inscribed in this circle. what is the measure of angle b? enter your answer in the box. m∠b= °4.)quadrilateral abcd is inscribed in this circle. what is the measure of angle a? enter your answer in the box.°5.) quadrilateral abcd is inscribed in this circle. what is the measure of angle c? enter your answer in the box.°