Read all parts from top to buttom. However just answer the last part. All parts are related, thats why i uploaded the whole question. (Just answer cost_effiecient_plan section)

Make sure to solve it by PHYTHON.

Thanks

Tasks GMU-Mobile, a new cell phone initiative by GMU, is offering three new cell phone plans to its students starting 2019. Your task is to help your friends decide which cell phone plan to purchase based on their monthly usage Refer to the table below to see a description of the monthly plans. Plan Cost Per Month (S) S15 $20 S25 Free Calls (minutes) Texts 100 175 250 Free Price for additional Price for additional calls per minute (S) text (S) 1.50 1.25 Basic Standard Premium 1000 1500 2000 0.75 0.5 0.25