IDNLearn.com: Your destination for reliable and timely answers to any question. Receive prompt and accurate responses to your questions from our community of knowledgeable professionals ready to assist you at any time.
SOLUTION
The cost per student =$5
Then let the total cost be C(n) and n be the number of students
Then required function is
[tex]C(n)=5n+30[/tex]if the total number of student is 20, n=20
The total cost is
[tex]\begin{gathered} C(n)=5n+30 \\ C(n)=5(20)+30=100+30=130 \end{gathered}[/tex]Then the total cost is $130
If the total number of student is 25, then n=25
The total cost becomes
[tex]\begin{gathered} C(n)=5n+30 \\ C(n)=5(25)+30=125+30=155 \end{gathered}[/tex]