Convert 6 yards to feet. There are 3 feet in 1 yard.
There are 5 bags with 6 marbles in each bag. If the number of marbles in each bag increases by 2, which expression shows the total number of marbles?
The length of a yellow ant is 3/4 of an inch, and the length of a black ant is 5/8 of an inch. What is the difference between the lengths of the yellow and black ants?