Answer:
it does not give us a graph so i cant help you sorry....
Step-by-step explanation:
Answer:
d. 0
Step-by-step explanation:
The table can be interpreted as:

Required
Find 

Substitute: 

Using a calculator

Hence:

Valerie bought 18yrds of fabric. If she used 9yrds of fabric on her quilt, she will use another 9yrds on her sister's. The total is 18yrds.