How many towers of a hundred pennies would it take to build a tower of 1 million pennies

David must install fencing around a lot that is shaped like a right angle.the side of lot that runs east-west is 200 ft long.the side of the lot runs north-south is 125 ft long.calculate how many feet of fencing he will need to surround the entire lot.

The distance between two points is 6.5cm and scale of map is 1: 1000 what's the distance between the two points

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?