I bought six rolls of film for my camera,
Each roll cost $3.19. I also bought a
camera-carrying case for $6.95 and
one lens cap priced two for $1.50.
There was no tax on my purchase.
How much change did I receive from
the $30 I gave the clerk?
Since you bought six rolls of film and each cost 3.19, you take 3.19•6. Then you add 6.95 to that and then 1.50. After that you get 27.59. Then you subtract 27.59 from 30.00 and get 2.41
