15) 4m^2
17)9n^6
198a^2 (^ = power of)
72 square feet
EXPLANATION: when finding area of a rectangle, multiple Length x Width and 6x12=72
20 weeks long all you have to do is to 180\9
rise/run 1/4 so it can be
You can buy 285714 burgers with $1,000,000. Lot of burgers,eh?!?!?!?