At a graduation practice there are 200 chairs in 40 rows. How many chairs are in each row?

Stan's, Mark's, and Wayne's ages are consecutive whole numbers. Stan is the youngest, and Wayne is the oldest. The sum of their ages is 105. Find their ages.

To measure satisfaction with its cell phone service, AT&T takes a stratified sample of its customers by age, gender, and location. Which is an advantage of this type of sampling, as opposed to other sampling methods?

How many Solutions are in the equation 3n (2n-8) = 24-6n

What percent of 600 is 87? proportion.

Find the discriminant and the number of real roots for this equation x^2+2x+7=0

For the trinomial x2 + 10x + 21, we want to find two binomial factors

Difference between 4 and 2 times a number is 10

Sara is 6 years older than max in 3 years she'll be 1 1/2 of max's age. how old is max?

It took team infinite dimensions 2 hours to hike 4 2/3 miles.

Write an algebraic expression for the phrase. the product of p and 9 p + 9 p/9 9p p - 9