2. 4a’bc + 7a²b2 – 6b3 + 2a²b2 - (a’bc + 2ab2 – 463)

Ahigh definition tv cost $800 with a down payment of 2/5 of the cost. how much is left to pay, in dollars after the down payment has been made?

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.