On March 31, you opened a savings account at Main Street Savings Bank with a deposit of $817.25. At the end of October the interest was computed at an annual rate of 53 ⁄4 percent and added to the balance in your account. a. How much simple interest did your money earn? b. What was your new balance?

the answer is 31.27mph

the answer is 489

step-by-step explanation:

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

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answer