Answer:
Nominal Interest Rate: Does not consider inflation provides a sense of purchasing power
Real Interest Rate: It describes the stated interest rate on an account and also considers inflation
Step-by-step explanation:
Real interest rate can be defined as the Nominal interest rate minus the inflation rate.
Nominal Interest Rate is the interest rate without taking into account the inflation
ANSWER

EXPLANATION
The given matrix is a 4 by 4 matrix.
We want to find

This is the entry in Row 1 Column 4.
We trace row 1 Column 4 and identify the entry in their intersection.
This entry is 5

While I cannot see your answer choices, the correct answer would be one that has a coefficient that is a multiple of 3 and has an x raised to an exponent of no more than 2. It could have any other variables in it.
The reason this has to be is because of the GCF. Since 3 is part of the GCF, and the other monomial has a coefficient of 3, this means the missing monomial must be divisible by 3 as well.
Since x² is part of the GCF, the missing monomial must contain x². However, if it were to contain x³ or anything larger, the GCF would have x with a higher exponent.
Try a protractor to solve it