Here is how Han found 31.59 - 13: 1. At the second step, Han subtracts 52 from 55. How do you know that these numbers represent tenths? 2. At the third step, Han subtracts 39 from 39. How do you know that these numbers represent hundredths? 3. Check that Han's answer is correct by calculating the product of 2.43 and 13.​

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry

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