75% of the books on Benny's shelf are fiction. If 30 books are fiction, how many books are on Benny's shelf in all?

It takes evan 6 3/4 to mow 3 lawns. it takes 2 1/3 hours to mow me. gals lawn and 1 3/4 hot mow ms. lee’s lawn. how many hours does it take evan to mow the third lawn?

Aright triangle has an area of 18 square inches. b: if the triangle is not an isosceles triangle, what are all the possible lengths of the legs, if the lengths are whole numbers. answer !

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points