Answer:
9*10=90 so 6*9=54 then answer is 90:54
Step-by-step explanation:
For every book Chloe read Peyton read 5
Chloe : Peyton
11 : 55
Divide each by 11
11/11 : 55/11
1 : 5
24
78-30=48
48/2=24
each one is 24kg
Answer: y = 1/3x + 2