Need dedicated mathematicians to me : ( answer and explain brainliest + 45 points! determine the quadratic regression for the data. (1, 5) , (3, 4) , (4, 1) , (5, 2) , (7, 4)

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.°

Write the equations in logarithmic form 9^4=6,561

Have yall ever just farted and was like, i farted.