The music store is having a 15% off sale on all classical music cds. Lyell has a coupon for 20% off any classical music cd. How
1 answer:
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Answer:
Step-by-step explanation:
Given
Required
The rate of change (b)
The above graph is represented as:
For: ;
We have:
For ,
We have:
Substitute
Divide by 2
<em>Hence, the rate of change is 2.50</em>
