Answer:
3 terms
Step-by-step explanation:
10x
-6+8+12 (constant)
r
I believe it is 30 cubic yards. There are 27 cubic feet per cubic yard. Correct me if I'm wrong!
Let the price of 1 shirt be represented by = s
A pair of pants costs twice as much as a shirt, then the cost of pants is = 2s
The total cost of 1 pair of pants and 1 shirt is $18 , means : 
Solving this we get,


So, the price of 1 shirt is $6 and price of 1 pair of pants is = 2s = 2*6 = $12.