Customers of a phone company can choose between two service plans for long distance calls. The first plan has an $18 monthly fee and charges an additional $0.08 for each minute of calls. The second plan has a $10 monthly fee and charges an additional $0.12 for each minute of calls. For how many minutes of calls will the costs of the two plans be equal?

The costs of the two plans would be equal with 200 minutes.

Step-by-step explanation:

From the information given, you can write the following:

18+0.08x=10+0.12x, where x is the number of minutes of calls

Then, you can solve for x:

18-10=0.12x-0.08x

8=0.04x

x=8/0.04

x=200

According to this, the answer is that the costs of the two plans would be equal with 200 minutes.

choice b is correct

step-by-step explanation:

we have been given the following system of inequalities;

we are required to graph the solution to the system of inequalities. using a graphing tool, the graph of the system is as shown in the attachment. the continuous line represents the graph of while the dotted line represents .

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.