Compare 9 . 10^4 to 3 . 10^2
a. 9 . 10^4 is 3 times larger than 3 . 10^ 2
b. 9 . 10^4 is 30 times larger than 3 . 10^2
c. 9 . 10^ 4 is 300 times larger than 3 . 10^2
d. 9 . 10^4 is 3000 times larger than 3 . 10^2

one fourth of 9% = 2.25%

gavin is correct in saying : the equivalent quarterly interest rate would be

2.25%.

and?

step-by-step explanation:

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.