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Calculate the return on capital of a business whose net marketing contribution is $300 million and total invested capital is $900 million. The other expenses, including interest and taxes, amount to $120 million

A) 40% B) 15% C) 5% D) 30% E) 20%

Which of the following would lead to greater competition in the maturity stage of the PLC?

A) overcapacity B) market pioneers C) poor management D) inadequate promotion E) diminishing budgets