D'John saves $8 per week. Arthur saves 4 times the amount D'John saves in the same week. Write an equation that shows how to find the amount "a" Arthur saves. Then solve the equation
The variable 'a' represents how much Arthur saves. Because D'John saves $8 per week (7 days), he saves $56. Arthur saves four times more than D'John so $56*4 equals Arthur's total savings for the week; $224.