exam Maths Puzzle Numerical Ability

suppose that the length of a rectangle is 3 inches longer thant the width and that the perimeter of a rectangle is 78

set up an equation involving only L, the length of the rect

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exam Other Question
A long-distance phone call costs $0.96 for the first minute and $0.72 for each additional minute or portion thereof. Write an inequality reprssenting the number of minutes a person could talk without exceeding $6. A certain sum of money is invested at 10%. Twice that amount is invested at 8%. The total amount of interest from both investments is $91.00. How much is invested at 8%. Can you show me how you work it out and solve it?