What is exceptional about the role of early polynesian cultures in exploration?
a. they sailed to the americas.
b. they traveled over 2000 miles by sea.
c. they sailed around the continent of africa.
d. they were the first to move from one island to the next.

They travelled over 2000 miles by sea is exceptional about the role of early Polynesian cultures in exploration

Explanation:

These people have the exceptional talent having the excellency in boat making. And have the ability to sail across the sea with the help of currents, stars and with cloud formation. They have excellency with the highest skill in fishing and farming. Growing of fruit trees, growing of vegetables that also includes the growing of pigs, poultry and dogs. Islanders were having the talent of craftspeople, and cravings of wood, fibre and feathers for creating pieces of power and beauty.  

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

is this for the e2020 class