7. Rachel is thinking of a number. She multiplies it by 8, subtracts 36, then multiplies the answer by 5.
She gets the number 20,
What number did she think of?

whats the answer

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

What is the graph of the function fx x+2/x-3?

Prove the converse of the pythagorean theorem using similar triangles. the converse of the pythagorean theorem states that when the sum of the squares of the lengths of the legs of the triangle equals the squares length of the hypotenuse, the triangle is a right triangle. be sure to create and name the appropriate geometric figures.