Answer:
B. 2
Step-by-step explanation:
she has 2/3 of it done in an 1/3 of an then in an hour 6/3 will be done and 6/3 simplified is 2
Answer:

Step-by-step explanation:
Given


Required
Ratio B(x) to A(x)
This is calculated as:

Express as fraction

Substitute:
and 

Apply law of indices


Answer:
(-3,-6)
Step-by-step explanation:
18 if it’s not, then 21. I did ratios i long time ago so i don’t fully remember them.
3790241068
Count by 3's from right to left and insert commas after every 3
3,790,241,068