Determine the slope of the line that contains the given points. t(6,3),v(8,8)

Math it's appreciated. (picture provided)

An account with a $250 balance accrues 2% annually. if no deposits or withdrawals are made, which graph can be used to determine approximately how many years will it take for the balance to be $282? it's e2020 ni️️as

Plz hurry evaluate the expression a+b where a=8 and b=19