Please help with the below question. Thank you!

A disease spreads through a population. The number of cases t days after the start of the epidemic is shown below. Days after start (t) Number infected (N(t) thousand] Assume the disease spreads at an exponential rate. How many cases will there be on day 80?' thousand (Round your answer to the nearest thousand) 0n approximately what day will the number infected equal eighty~four thousand? (Raund your answer to the nearest whole number)