SOLUTION: Cell phone plan. It costs $30.00 per month plus $0.30 per each additional minute over 200 minutes. Write an expression for the monthly cost of n additional minutes. Use the expr

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Question 71164: Cell phone plan.
It costs $30.00 per month plus $0.30 per each additional minute over 200 minutes.
Write an expression for the monthly cost of n additional minutes.
Use the expression to find the total monthly cost for 85 additional minutes.
How do I write the expression? Please help!

Answer by ankor@dixie-net.com(12705) (Show Source):
You can put this solution on YOUR website!
It costs $30.00 per month plus $0.30 per each additional minute over 200 minutes.
Write an expression for the monthly cost of n additional minutes.
.30n
:
Use the expression to find the total monthly cost for 85 additional minutes.
:
Total means include the fixed monthly cost of $30
cost = .30n + 30
:
cost = .30(85) + 30
cost = 25.50 + 30
cost = $55.50
: