The given graph shows the cigarette consumption (in billions) in the United States for the years 1900 to 2007
Choose the best estimate for the number of cigarettes smoked in 1980.
600 billion
620 billion
575 billion
700 billion

620 billion

Step by step If you look at the graph it’s a little over 600 but it’s lower than 700 so therefor you’re answer would be 620 billion.

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.