There are 4 new books and 9 used books on a shelf. (a) What is the ratio of new books to all books on the shelf?

(b) What is the ratio of used books to all books on the shelf?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Deshawn uses 3/4 of a box of rice to cook dinner the portion he uses weighs 12 ounces right and solve an equation to find the weight of the full box of rice

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?