t = 3
step-by-step explanation:
put t = 3 in this expression :
(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680
6.9
simple math really
6 1/2 times 0.6 = 3.9
but if you are just doing 6 and not 6 1/2 then the answer is 3.6
answer: the first graph
its 50 miles away from the starting point