if the annual interest rate is 6%, and interest is compounded monthly, the interest rate per period is: %
for a 4-year loan, at 8% compounded quarterly, the number of interest periods is:

1) 0.5 %

2) 16

Step-by-step explanation:

Since, a year = 12 months,

1 month = year,

1) If the interest is compounded monthly,

Then, the rate per period =  

Given, annual rate = 6%,

So, the rate per period = = 0.5%,

2) 1 year = 4 quarters,

If the loan is of 4 year and it is compounded quarterly,

Then, the number of compounding periods = number of years × 4

= 4 × 4

= 16

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional