[PLEASE ADD AN EXPLANAITON] How did the Gulf of Mexico's dead zone form?

All the fish and invertebrate species migrated elsewhere.

Hurricanes destroyed the coastline.

An oil spill killed all the species there.

Fertilizer runoff from farming caused populations of algae to grow exponentially.

Fertilizer runoff from farming caused populations of algae to grow exponentially.

Explanation:

hope this helps

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles