If 2% of the people in the US have red hair and there are 610,000 people in the US with red hair, find the population of the US

An ice cream store stocks 30 different flavors and offers rainbow banana boat split that contains 3 scoops of ice cream each of a different flavor. On a banana boat they put one scoop of ice cream on the left one scoop in the middle and one scoop on the right of the banana boat. How many different rainbow splits can the store advertise?

How many route per day does the Green Line and Red Line have?

A president, vice president, and 2 at-large members are selected for a school council from 10 people. If there is no difference between the at-large members, how many committees can be formed?

One Sunday, 681 people visited the zoo. Of these, 291 were men, 135 were women, and the rest were children. How many more adults than children visited the zoo that day?

There are 4 adult drivers to each teenage driver in a city. If there are 9,952 adult drivers in the city, how many teenage drivers are there? There are teenage drivers in the city.

There are 100 students who are taking history or sociology. If 10 are taking both courses and 45 are taking just history, how many are taking sociology?

The populations of the three largest cities in Canada were the first city with 5,317,957 people, the second city with 3,601,835 people, and the third city with 2,212,824 people. Estimate the total population of the three cities. The total population is approximately people.

The infamous Gillette ad has 1.55 million “dislikes” on YouTube, making it the 26th most disliked video on YouTube.  If 1% of the people who disliked the video are male former Gillette customers who will now boycott Gillette, and if Gillette razors cost $30 for a pack of 10, and if a man uses 1 Gillette razor per day, and if a year has 365 days, how much money will Gillette lose per year?

The San Francisco School District services the Elementary and Middle schools in San Francisco. There are 30 teachers teaching in San Francisco Elementary Schools and 96 teachers teaching in San Francisco Middle Schools. If the total number of teachers in the San Francisco School District is 113, how many teachers teach at both the Elementary and Middle school levels?