What is the smallest number with exactly 7 factors?

David must install fencing around a lot that is shaped like a right angle.the side of lot that runs east-west is 200 ft long.the side of the lot runs north-south is 125 ft long.calculate how many feet of fencing he will need to surround the entire lot.

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c