Jake wants to post a 600 gram parcel and an 800 gram parcel.
He posts them Second Class.
He pays with a £10 note.
How much change should he get?
b is cheaperrrrrrrrrrrrrrrrrrrrrrrrrrrrr
The answer to that is y = -6
5000 pounds is equal to 2.5 tons because 1 ton is equal to 2000 pounds
If you plug in the x and y of choice b you would see that it does not equal 18.
6(3) + 3(-1) = 18
18 + (-3) = 15
