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

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

look in attachments

step-by-step explanation:

a = (-2, 0)

b= (-4, 0)

c = (-5,2)

d = (-1,2)