If the length and width of a rectangular garden plot were each increased by 20 percent, what would be the percent increase in the area of the plot?

If n is a positive integer and k+2=3n, which of the following could be a value of k?

The average of 6 numbers is 8.5, when one number is discarded the average of the remaining numbers becomes 7.2...

If (x-1)^2 =400, which of the following could be the value of x-5?

If n and p are both odd numbers, which of the following must be an even number?

What is the least integer that is a sum of three different primes each greater than 20?

The organizers of a fair projected a 25 percent increase in attendance this year over that of last year, but a...