<u>The formula for the monthly payment</u>.....
![M= \frac{P(1+r)^nr}{[(1+r)^n] -1}](https://tex.z-dn.net/?f=M%3D%20%5Cfrac%7BP%281%2Br%29%5Enr%7D%7B%5B%281%2Br%29%5En%5D%20-1%7D)
, where P = the principal amount, r = the monthly interest rate and n = the total number of months.
Here annual interest rate is given as 4.5%
So, the monthly interest rate 
Total number of months 
Also given that, the principal amount is $225000
a. So, the monthly payment will be.....
![M= \frac{P(1+r)^nr}{[(1+r)^n] -1}\\ \\ M= \frac{225000(1+0.00375)^3^6^0*0.00375}{(1+0.00375)^3^6^0 -1}\\ \\ M= \frac{225000(1.00375)^3^6^0*0.00375}{(1.00375)^3^6^0 -1} \\ \\ M \approx 1140](https://tex.z-dn.net/?f=M%3D%20%5Cfrac%7BP%281%2Br%29%5Enr%7D%7B%5B%281%2Br%29%5En%5D%20-1%7D%5C%5C%20%5C%5C%20M%3D%20%5Cfrac%7B225000%281%2B0.00375%29%5E3%5E6%5E0%2A0.00375%7D%7B%281%2B0.00375%29%5E3%5E6%5E0%20-1%7D%5C%5C%20%5C%5C%20M%3D%20%5Cfrac%7B225000%281.00375%29%5E3%5E6%5E0%2A0.00375%7D%7B%281.00375%29%5E3%5E6%5E0%20-1%7D%20%5C%5C%20%5C%5C%20M%20%5Capprox%201140)
Thus, the monthly payment will be approximately $1140
b. The <u>total amount paid</u> over the term of the loan will be: 
c. As the principal amount was $225000 , so the amount of interest 
So, the percentage of amount that is paid toward the principal 
and the percentage of amount that is paid toward the interest 
The general formula for the total surface area of a regular pyramid is T. S. A. =12pl+B where p represents the perimeter of the base, l the slant height and B the area of the base
To find the surface area of a regular triangular pyramid, we use the formula SA = A + (3/2)bh, where A = the area of the pyramid's base, b = the base of one of the faces, and h = height of one of the faces.
We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area.
To find surface area for a rectangular prism, use the formula SA = 2ab + 2bc + 2ac, where a is the width, b is the height, and c is the length. If you're trying to find the surface area of a triangular prism, use the formula SA = 2a + ph, where a is the area of the triangle, p is the perimeter, and h is the height
Hope that was helpful.Thank you!!!
Answer: 
Step-by-step explanation:
Since, by the SAS formula of finding the area of triangle,
The area of triangle, 
Where, 
and 
are adjacent sides and 
is the included angle of these sides
Here, 
And, 
Thus, the area of the triangle ABC,
Therefore, Third Option is correct.
