They searched for a route around Africa. One example of this would be De Gama, who sailed around the Cape of Good Hope for the Portugese, into the Indian Ocean World, where they established trading firms.
Explanation: the answer was -74 because u had to add 80+26 to equal 106 then u had subtract to 106 from 180 then you got -74 but in but the number cant be negative so the answer is just 74.