ses

Aniston is going to paint all four walls and the cieling in his living room. The mesurments is 6m length, 4m width and 2m height. a tin covers 20m2. How many tins of paint does aniston need to buy?

The price, p, in dollars, of a stock, t, years after 1999 can be modeled by the function: p(t) = 0.5t^3 - 5.5t^2 + 14t. When will the price of the stock be more than $90?

i acc dont understand but 3 right?