Is a rational or irrational, and why? A.
Since it can be represented as a fraction of two rational numbers, is rational.
B.
Since it cannot be represented as a fraction of two rational numbers, is
rational.
C.
Since it can be represented as a fraction of two rational numbers, is irrational.
Since 7 cannot be represented as a fraction of two rational numbers, it is
irrational.

thats one

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.

the rate of change is 25

well in order to answer the question, you have to give us the dimensions of the prism first.