Will give to whoever actually answers Please please help me

Which of the following are true about essential questions?
An essential question helps to guide the research.

An essential question uses information to answer an evidence-based claim.

An essential question should be clear and of interest to the writer.

An essential question is developed into a thesis statement.

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?

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.°