11
What is the sign of 39 +
13
(-43)
?
Positive or negative

Three coins are flipped. what is the probability that there will be at least two tails?

Answer question above and explain each step : )

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.