Answer:
32
Step-by-step explanation:
Is the answer to your question 9?
Algebra
The graph is C, or the graph down left.
This is because the other graphs lack the same vertex.
Unit rate means how much does it cost for 1 unit
140 for 18ft^2
divide by 18
140/18=7.77777777777777
so the unit rate is $7.78 per square foot