Answer:
32,000
Step-by-step explanation:
Ratio for this mean for every 10 cats sold there was one dog
60/10 = ?
6 dogs
ratio = 60:6
Answer:
The last one the one with (-6,00) and Range (5,00)

Hope you could get an idea from here.
Doubt clarification - use comment section.
Answer:
yes
Step-by-step explanation:
The graph is of a function (one output for every input) that also passes the horizontal line test (one input for every output). Hence it is one-to-one.
For a <em>function</em>, the key for it being one-to-one is that it pass the horizontal line test.