Ttakes 23minutes for 6people to paint 6 walls.
how many minutes does it take 9 people to paint 9 walls?

3. a sum of $2700 is to be given in the form of 63 prizes. if the prize is of either $100 or $25, find the number of prizes of each type.

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122

What is the sum of the first 8 terms of the geometric series