Henry and his sister Julie both collect stamps. Julie has 3 4 the amount of stamps that Henry has. If Henry has 20 stamps, how many stamps does Julie have?

Evaluate 5 + 6 · 2 – 8 ÷ 4 + 7 using the correct order of operations. a. 22 b. 11 c. 27 d. 5

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?

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.