Convert everything to meters
300 m + 2500 m + 75 m
2875 meters
16t -2(2t+5) =14
distribute the parenthesis first:
16t-4t-10 = 14
combine like terms:
12t - 10 = 14
add 10 to both sides:
12t = 24
divide both sides by 12
t = 24/12
t = 2
Yes. Because the sum of the two small numbers are bigger than the longest side.
3+5 >7