Loren made a scale map of his football field to prepare for the big game. The length of the football field on his map was 3 in. In reality the football field is 100 yards long.
What is the scale factor?

What is the percent of increase for a population that changed from 438,000 to 561,000

Dropping less than two inches per mile after emerging from the mountains, a river drains into the ocean. one day's discharge at its mouth, 5.6 trillion gallons, could supply all of country a's households for seven months. based on this statement, determine how much water an average household uses each month. assume that there are 100 million households in country a. country a uses approximately nothing gallons per household per month.

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)