The percent increase is 6% because it increased by 6 and 6 is 6% of 100.
Hope this helps!
The answer would be that the X=3
84 ÷ 2 = 42
Check it to make sure.
2 × 42 = 84
42 and 2 can be multiplied to get 84.
Simply divide 61.50 by 3. You should be able to reach the answer that way