Write a real word problem that involves dividing a decimal by a whole number

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Need same math paper but the back now i hope your able to read it cleary i need with hw

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?