Alright! So to solve these questions, you need to find out the difference. You can use ratios to solve this. For example, question #25:
A class had 30 pupils at the beginning of this school term, but now has 5 more pupils. What is the percent of increase?
The question is basically asking how much 5 is in ratio to 30. So just divide 5 (the given amount) by 30 (the total amount). The answer is 0.16, or 16%
Answer:
C 18 x minus 9 = 72
D 3 (6 x minus 3) = 72
E x = 4.5
Step-by-step explanation:
Hope this helped
"22", "7" and "7,5" are the answers in order
