Don’t understand, plz explain very urgent

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

Noel is hoping to make a profit (in $) on the school play and has determined the function describing the profit to be f(t) = 8t – 2654, where t is the number of tickets sold. what does the number 8 tell you?

Factor the polynomial expression x6 – x3 – 20