An angle inscribed in the same os equal arc are equal?

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1

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.°

Edger needs 6 cookies and 2 brownies for every 4 plates how many cookies and brownies does he need for 10 plates