Someone pls answer! pls answer correctly!

degrees Celsius and degrees Fahrenheit are related by the equation

c = 5/9 (F - 32) solve for f​

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

Which best explains why this triangle is or is not a right triangle?

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.