Acellphone service provider charges $5.00 per month and $0.20 per minute per call. if a customer's current bill is $55, how many minutes did the customer use? (round any intermediate calculations and your final answer to the nearest whole minute.) 300 minutes 275 minutes 250 minutes 225 minutes

250 minutes

Step-by-step explanation:

Given,

Cell phone charges for a month = $ 5.00,

Additional charges per minute = $0.20,

Let the cell phone is used for x minutes for a month such that the total bill is $ 55,

⇒ Cell phone charge for the month + additional charges for x minutes = $ 55

⇒ 5.00 + 0.20x = 55

Subtracting 5 on both sides,

0.20x = 50

x = 250,

Hence, the cell phone is used for 250 minutes.

Third option is correct.

the solution is 12x-6y

the answer is a) y= 2 csc [0.5 (x+pi/2)]-1

step-by-step explanation: