Answer:
A
Step-by-step explanation:
because proportion is right vertical
Answer:
19
Step-by-step explanation:
If you divide 57 by 3, the answer you will get is 19. Hope this helped!
Answer:

Step-by-step explanation:

Answer:
$80
Step-by-step explanation:
It's khan so you don't need the explanation but for those interested then here:
K=30x+20 - Kayla
S=35x+10 - Sara
60+20=80
70+10=80
So they match up at $80