For his phone service, Ravi pays a monthly fee of $21, and he pays an additional $0.07 per minute of use. The least he has been charged in a month is $117.53. What are the possible numbers of minutes he has used his phone in a month? Use m for the number of minutes, and solve your inequality for m. PLEASE HELP!​

this doesn't make sense lol

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

7

step-by-step explanation:

answer: group b.

step-by-step explanation: