Answer:
0.2682 or 26.82%
Step-by-step explanation:
The monthly interest rate (r) that your friend is willing to pay is:

The following expression converts a monthly interest rate (r) into an annual interest rate (i):
![r=\sqrt[12]{1+i}-1](https://tex.z-dn.net/?f=r%3D%5Csqrt%5B12%5D%7B1%2Bi%7D-1)
For r = 0.02:
![0.02=\sqrt[12]{1+i}-1 \\1.02^{12}-1=i\\i=0.2682](https://tex.z-dn.net/?f=0.02%3D%5Csqrt%5B12%5D%7B1%2Bi%7D-1%20%5C%5C1.02%5E%7B12%7D-1%3Di%5C%5Ci%3D0.2682)
Your friend is willing to pay an annual rate of 0.2682 or 26.82%.
Answer:
$513.5
Step-by-step explanation:
$475 + ($700 x 5.5 / 100)
$475 + ($3850 / 100)
$475 + $38.5
$513.5
Answer:
3/5
Step-by-step explanation:
The cosine ratio is ...
Cos = Adjacent/Hypotenuse
cos(B) = BA/BC = 48/80
cos(B) = 3/5