The answer is 26 because if you round 12.5 it would be 13 and of you would round 1.75 it would be 2. After you do this you would multiply the 2 numbers and get 26 which is your answer.
We can use this equation to find how many questions there were on the test:
.75x = 18
This equation means 75% of what is 18.
.75x = 18
Divide both sides by .75
x = 24
There were 24 questions on the test.
