Your long distance telephone provider offers two plans, plan a has a monthly fee of $15 and $0.25 per minute. plan b has a monthly fee of $20 and $0.05 per minute. write and solve an equation to find the number of minutes that you must talk to have the same cost for each of the plans.

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

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step-by-step explanation: