An ancient society used gold, silver, and bronze coins. The relative values of the money are: 5 silver coins = 1 gold coin 16 bronze coins = 1 gold coin One of the citizens has 21 silver coins. How many bronze coins would it take to equal this amount? (Round your answer to the nearest whole number.)

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.°