The length of a field measures 3.5 miles. What does the length of the field measure in feet?

13,200 ft
15,840 ft
18,480 ft
21,120 ft

What is the solution to the equation below? 3/x-2+6=square root x-2 +8

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.°

Ithink i know it but i want to be sure so can you me out ?