Quandaries
and Queries 

I have a carport that is 20' x 31' and a driveway that is 12' x 18' that requires a 3" depth of concrete. My grade level is 9th 

Hi Cyndi, You have two rectangular slabs of concrete, one of them 20' by 31' by 3" and the other 12' by 18' by 3". The volume of a rectangular solid is the length times the width times the height, however you want the volume in cubic yards and the dimensions are in feet and inches. You should first convert all the measurements to yards. There are 3 feet in a yard and 12 inches in a foot. Hence
and
In a similar fashion convert all the measurements to yards and then find the volume of each of the two slabs in cubic yards. Penny
