Acell phone company charges $45 a month for phone service and $0.25 for each text message. which equation can be used to find the total number of text messages sent in a month? how many text messages were sent if the monthly bill was $75?

We are given

A cell phone company charges $45 a month for phone service and

$0.25 for each text message

(a)

Let's assume

total number of messages sent on each month is x

total monthly bill is $ y

so, we can set up  equation

now, we can solve for x

Subtract both sides by 45

...........Answer

(b)

we can plug y=75

and then we can solve for x

so, total number messages sent were 120...........Answer

x -

median = 1.25

range = 12-14.5

interquartile = q12-q14.5

y -

median = 1

range = 15-17

interquartile = q15-q17