Question

Nadia took two practice exams to prepare for her college entrance exam. On the first practice exam, she scored one thousand one hundred. After studying, her score increased by thirty percent. What was her score on the second practice exam?

Answer 1

Let x represent the increase of her score and y represent her new score.
1,100 *.3 = x
1,101 + x = y

Answer 2

1,100*.3=330
1,100+330=1430.
By the way the 1,101 was a typo. It's 1,100. But your answer would be 1430.