Economists use as a model to explain how savers and borrowers come together to determine the equilibrium rate of interest. A. the financial system B. the money market C. aggregate demand and aggregate supply D. the market for loanable funds

D. the market for loanable funds.

Explanation:

A loanable fund is a theory of market interest rate. Loanable funds are the sum of total money which the people have decided to save and lend to borrowers. This theory determines the equilibrium rate of interest by savers and borrowers. This theory defines that interest rate is determined by demand and supply of loanable funds. The demand for loanable fund is downward sloping which indicates that investors respond to lower interest rates by increasing the demand of loanable funds.

the median of the data is 4.

step-by-step explanation:

the median means the middle number of a given number.

to decide which one is the median, arrange in ascending or descending order. but sometimes, you may find two(2) number in the middle, but it's easy, just add them together and divide by 2.

so,   determine the median of the data. 2, 3, 3, 4, 5, 7, 9

it is already arranged, count 3 times forward and 3 backward and the one left is your answer.

2,3,3,4,5,7,9

our answer is 4.

hope this !