1 centimeters represents 10 meters on the ground so the scale ratio is

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

Marion has a bicycle that she is planning to take for a ride. the rim of the rear wheel lies 41 cm from the center of the wheel. the tire itself has a thickness of 3 cm. in order for marion to ride her bicycle 96,712 cm approximately how many rotations will the rear wheel make?

Me because i don't understand how to do it.: )