Answer:
proportionality.
Step-by-step explanation:
Constant of Porportianality.
I believe it’s b- it might not be correct I believe
The correct answer is C
(X-5)²+(Y-7)²=50
9 books cost 32
Step-by-step explanation:
5 books =20
1 book= 5÷20 = 4
9 books = 4×9 = 32