Robert has $18 to spend on ring tones for his new cell phone. Each ring tone costs $1.95 to download. By rounding the cost of the ring tones to the nearest whole dollar, estimate the number of tones he can download. A. 7
B. 9
C. 11
D. 13

B

Step-by-step explanation:

is you do 18÷1.95=9.2 which is just 9 rounded up.

b. 9

Step-by-step explanation:

18 divided by 1.95 is 17.55

17.55 rounded is 18.

so therefore Robert can download 9 ringtones for his phone

18.8cm hope i at all

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