Answer:
[tex]d = 29r + 10[/tex]
Solving steps:
To check :--
=> d = 29r + 10
according to the table lets insert 3 to check if it's correct
=> d = 29r + 10
=> d = 29(3) + 10
=> d = 87 + 10
=> d = 97
so therefore it gave us the correct answer according to the table the cost in dollar where 97 and since it gives us 97 it's correct
