SOLUTION: You are in charge of reserving hotel rooms for a youth soccer team. Each room costs $69,plus $6 tax, per night. You need each room for two nights. You need 10 to 16 rooms. What is

Question 1186562: You are in charge of reserving hotel rooms for a youth soccer team. Each room costs $69,plus $6 tax, per night. You need each room for two nights. You need 10 to 16 rooms. What is the domain of the function C = 69r + 6?
Found 2 solutions by ikleyn, josgarithmetic:
Answer by ikleyn(52776) (Show Source): You can put this solution on YOUR website!
.

If the number 6 in your formula represents $6 tax per each room per night,
then the formula for the total cost is written incorrectly.

I do not understand, what about the domain I can/should discuss regarding an incorrect formula.

Answer by josgarithmetic(39616) (Show Source): You can put this solution on YOUR website!
Cost is then 69+6=75 dollars per night for each room. This is a RATE.
If r number of rooms and n number of nights, then cost is .
What domain you are looking for is not clear. If it is how many rooms, then r is from {10,11,12,13,14,15,16}.
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