# A certain cellphone company of

A certain cellphone company offers a plan that costs P1,200.00 per month . The plan includes 180 free minutes of call and charges P7.00 for each additional minute of usage.

a. Find the monthly cost function C(x) where x represents the number of minutes used

Use this formula in solving:
Monthly Cost = Plan Cost + Additional Charge per Minute

b . How much is the monthly cost incurred if the owner used 180 minutes of call ?

c. How much is the monthly cost of the plan if the owner used 300 minutes of call ?

This is the final answer in my questions:

a. C(x) = 7x – 60

b. P1,200.00

c. P2,040.00

I JUST NEED THE SOLUTION IN EVERY QUESTIONS

# A certain cellphone company of

A certain cellphone company offers a plan that costs P1,200.00 per month . The plan includes 180 free minutes of call and charges P7.00 for each additional minute of usage.

a. Find the monthly cost function C(x) where x represents the number of minutes used

Use this formula in solving:
Monthly Cost = Plan Cost + Additional Charge per Minute

b . How much is the monthly cost incurred if the owner used 180 minutes of call ?

c. How much is the monthly cost of the plan if the owner used 300 minutes of call ?

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