Lydia rides her bike 3 miles from her house to the store. Then she rides her bike 7 miles from the store to her uncle's house. She rides home. Lydia does not know how far it is from her friend's home to her own house, but she knows she travelled 15 miles in all. How far is it from Lydia's friends home to her own house?​

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.°