Suppose that three Civilian Conservation Corps members, Richard, Nancy, and John, had to build a rock wall. They had to move 21 boulders across a field. Seven of the boulders were
large, weighing 25 pounds each. Seven of the boulders were medium-sized, weighing 20
pounds each. Seven of the boulders were small, weighing 15 pounds each. Each worker had
a wheelbarrow. They agreed to share the task equally. Each person carried the same number
of boulders and the same number of pounds. How did they manage to do this?

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