Can you define Pi in its broadest sense?

What is 10/9 as a decimal

Of the 240 students eating lunch, 96 purchased their lunch and the rest brought a bag lunch. what is the ratio of students purchasing lunch to students bringing a bag lunch?

You estimate that a baby pig weighs 21 lbs but it weighs 28 lbs what is the percent of error

The temperature in New York is - 5 degrees the temperature in Texas was 15 degrees what is the difference of the temperature in the two cities

For what value of c will this function have one zero? f (x) = X^2 + c

Is 5/2 rational or irrational

In an election, about 500,000 people voted in all. What could be the exact number of people who voted in the election?

Is 0.8 miles more than 0.69

A copy center offers its customers two different pricing plans for black and white phototcopies of 8.5 in. pages. Customers can either pay $0.08 per page or pay $7.50 for a discount card that lowers the cost to $0.05 per page.

To decrease a number by 21 % what do i have to multiply it by