A pen costs 4.60 Rs. How much will 2 pen cost?

₹9.20

Step-by-step explanation: Cost of a pen = ₹4.60

∴Cost of 2 pens = 2×4.60

= ₹9.20

View the attached graph for the graph of these two lines. The red line is y = 3x - 2 and the blue line is y = 4x - 4. To graph these on your own, however, start at the y-intercept and go up the numerator of the slope and across the denominator of the slope. And if you need more help with graphing lines, feel free to view this article here : https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:forms-of-linear-equations/x2f8bb11595b61c86:graphing-slope-intercept-equations/a/graphing-slope-intercept-form

As you can see from the graph, the point of intersection of the two lines is the solution, which is (2,4).

Hope this helps!! :)