Which table shows a proportional relationship between x and y? X: 3, 5, 7, 8
Y: 1.5, 2.5 3, 4.5

X: 2, 4, 5, 6
Y: 6, 12, 18, 21

X: 1, 2, 3, 6
Y: 1.5, 3, 6, 9

X: 1, 3, 4, 5
Y: 50, 150, 200, 250

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.°