A cell phone provider offers a plan that costs $40 per month plus $20 per text message sent or received. A comparable plan costs $70 per month but offers unlimited text messaging. How many text messages would have to be sent or received in order for the plans to cost the same?

x = 150 text message

Step-by-step explanation:

Let x be the number of the text message.

Given:

First plan = $40 per month plus $0.20 per text message

Second plan = $70 per month with unlimited messaging

Solution:

According to given statement the cost of the first plan is $40 per month plus $0.20 per text message and other plan is $70 per month with unlimited messaging.

So, we write the equation as:

Subtract 40 from both side.

Divide both side by 0.20

x = 150 text message

Therefore, 150 text messages should be sent or received in order for the plans to cost the same.

answer: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.