Explain reasoning!
1.) if you make 20% more money than me, then i make 20% less than you.
2.)if i have an average of 60% before the final , then i must score 80% on the final in order to raise my average up to 70% to pass the this math 75 class.

1.) Incorrect,

2.) Correct

Step-by-step explanation:

1.) Let x be the amount of money,

After increasing x by 20%,

New amount of money ( say y )= (100+20)% of x ( i.e. y is 20% more than x )

= 120 % of x

⇒ y = 1.20x

≈ 16.67%

Thus, x is approximately 16.67% less than y.

2.) First score = 60%,

Second score = x% ( let )

So, Average percentage score =

If

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right