7) The diagram shows a shape made up of a regular star shape and 5 regular pentagons. The perimeter of the star is 45 cm. Find the perimeter of the whole shape.

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Simplify this expression. 8x 16(x + y)

Hundred and tens tables to make 430 in five different ways