Caleb must choose from 4 books to take on a trip. He has 8 books to choose from. How many combinations of 4 books are available?

Solve |2x - 5| = 4 if anyone could , that would be great

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1

Which of the following describes the symmetry of the graph of y = x3?