The tax on my new shoes was 8.5%. The store showed the price was $66 for the shoes. What was the cost after the tax? 25 POINTS PLS HELP

Place the following steps in order to complete the square and solve the quadratic equation,

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

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.°