How would 4,609,912,073 be written in word form? a. four billion, six hundred nine million, nine hundred twelve thousand, seven hundred three b. four billion, six hundred nine million, nine hundred twelve thousand, seventy-three c. four million, six hundred ninety-nine thousand, one hundred seventy-three d. fourteen million, nine hundred twelve thousand, seven hundred three

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.°