What single percentage change is equivalent to a 12% increase followed by a 13% increase?

A 26.56% increase.

Step-by-step explanation:

A 12% increase corresponds to a total of 112% of the original amount.

Hence, a 13% increase of the 112% of the original amount would be equal to 1.12*1.13 = 1.2656, which equates to 126.56% of the original amount.

Hence, the single percentage change would be a 26.56% increase.

Hope this helped!

the reporter's right

step-by-step explanation:

1/4 = .25 / 25%

a. is correct