Under the feudal system, a higher noble granted land to a lower noble in exchange for
a)a portion of the lower noble's crop yield.
b)an oath of loyalty.
c)the use of the lower noble's serfs.
d)a payment in the form of money or livestock

i think the answer will be

B:

an oath of loyalty.

before, mexicans where an indian tribe but when the spanish took over, they changed their language to spanish.

hope this : d

for this case we have the following equation:

we apply distributive property to the terms within parentheses.

subtracting 2 on both sides of the equation: