5. Why is seaborne trade more advantageous than land-based trade? 6. What role(s) did Africa play in the Indian Ocean Trade Network?

7. Why was trade so important for the cities on the Swahili Coast of Africa?

answer

explanation

the given equation is

we can rewrite this as:

let

then the equation becomes:

the factors of 8 that sum up to -9 are {-1,-8}

we split the middle term with these factors to obtain,

we factor by grouping to obtain:

apply the zero product property to get:

but

to replace ineffective because   andrew jackson's spoil system was a deliberate policy after he became president to remove federal employees he considered to be political opponents and replace them with his own supporters.