Aphone company advertises a new plan in which the customers pays a fixed amount of $25 per month for unlimited calls in the country, and $0.10 per minute for international class. find a rule for monthly payment a customer pays according to the new plan. write ordered pairs for the monthly payment when the customer use 90, 120, 145, and 150 international minutes in a month.

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step-by-step explanation:

step-by-step explanation:

let's assume

number of candles set =x

price of of x candles =p(x)

we are given

a candle maker prices one set of scented candles at $10 and sells an average of 200 sets each week

so, we get point as (200,10)

he finds that when he reduces the price by $1, he then sells 50 more candle sets each week

so, we can find slope

now, we can use point slope form of line

now, we can plug values

we can use point

and find b

now, we can plug it back

and we get

now, we can find revenue

we know that

revenue = price*quantity

so, we get

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