The paper cup is 9 cm tall and the circular opening has a radius of 2.5 cm.
1 answer:
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Answer:
Step-by-step explanation:
Given
of child's age
Solving (1):
Determine the cost function.
Represent the years as y.
So, we have:
* y
Convert 25 cents to dollars.
So, we have:
The cost amount is then:
--- This is the cost function
Solving (b): Cost of 9 years old.
In this case;
Substitute 9 for y in
--- This is the cost for a child of 9