SOLUTION: in a week katie volunteers 3 hrs more than elizabeth do's and siobhan volunteers 1 hour less than elizabeth. over 3 weeks the number of hours katie volunteer is equal to the sum o
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-> SOLUTION: in a week katie volunteers 3 hrs more than elizabeth do's and siobhan volunteers 1 hour less than elizabeth. over 3 weeks the number of hours katie volunteer is equal to the sum o
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Question 992527: in a week katie volunteers 3 hrs more than elizabeth do's and siobhan volunteers 1 hour less than elizabeth. over 3 weeks the number of hours katie volunteer is equal to the sum of elizabeth and siobhan volunteer hours in 3 weeks
