First, let's list the factors of each number 150: 1, 150, 2, 75, 3, 50, 5, 30, 6, 25, 10, 15 135: 1, 135, 3, 45, 5, 27, 9, 15 From these lists, we can say for certain that 1, 3, 5, and 15 go into both numbers, so that would be your list of the common factors.
So, one trillion is 1 and twelve zeros, thus 2.4 trillion is 2 trillions and 400 billions or 24 followed by eleven zeros, because the "4" is using up a space.
now, 1 million is 1 and six zeros, thus 100 millions is 100 and six zeros or 1 and 8 zeros.
now, is 2.4 trillions in four months, thus 2.4trillion/4 will give us how many gallons in 1 month.
to find how many households, simply let's divide it by 100 millions
Step-by-step explanation: Each triangle has 3 sides, and each side is 1 cm. Multiply the number of sides for one triangle by the total number of triangles. 3 x 40=120. The perimeter is 120 cm.