Answer: Lela's original score was 16.
Step-by-step explanation:
Alright lets get started.
Suppose Lela score was L.
Suppose Pepe score was P.
The ratio of Lela’s game score to Pepe's score is 
So the equation will be
Cross multiplying
.................equation 1
Then Lela completes a quest and scores 12 bonus points. The new ratio becomes 
Cross multiplying
Plugging value of P from equation 1
Hence the score of Leela originally was 16. Answer
Here, You need to substitute the value of x, and y, in the equation then check if L.H.S is equal to R.H.S or not. If they are equal then, ordered pair was correct, otherwise they are not applicable.
75) Here, oly option D can fit i the equation, we can check:
3(-5) -2(-1) = -15+2 = -13 = R.H.S
So, the pairs are valid.
76) Here, only option D is your answer,
4(2) - 4 = 8 - 4 = R.H.S
Do the same thing in every equation!
Hope this helps!
