There are 3 × 107 cars in the country and each car
uses about 7 × 102 gallons of gasoline each year.
About how many total gallons of gasoline are used
each year? Leave your answer in proper scientific
notation.
There are 1.2 × 107 anthills in Africa and there are
about 5 × 104 ants in each anthill. How many total
ants are there in Africa?
There are 5 × 109 cups of coffee sold each year
from coffee shops and there are a total of 2 × 104
coffee shops. On average how many cups of coffee
are sold at each coffee shop during a year?
If each coffee shop is open on average 360 days per
year, how many cups of coffee are sold daily in each
coffee shop?