|a+x|/2 − |a−x|/2 if a=−2; x=−6

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.

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

Change negative exponents to positive. then solve. round to four decimal places