before unlimited talk and text, bonnie used to pay $40 per month for her cell service, plus $0.10 for each text message she sen. One month, bonnie had a $76.50 cell phone bill. Write and solve an equation or inequality to determine how many text messages bonnie sent that month.

Step-by-step explanation:

0.1 x + 40 = 76.5

0.1x = 36.5

x = 36.5 ÷ 0.1 = 365

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?