Answer:
6
Step-by-step explanation:
Zack reads faster so he will finish first
Pam= 126/3 = 42/1
Zack= 180/4 =45/1
Now multiply the unit rates by 5 each
Pam= 210/5
Zack= 225/5
The lowest common denominator of 1/3 and 2/9 = 9
Answer:
y=63
x=63
z=72
Step-by-step explanation: