A rectangle has a perimeter of 84 meters and a length of 35 meters. What is the width of the rectangle?

1) w=7 meters

2) w=8 meters

3) w=9 meters

4) w=10 meters

How to write the solution in unit form and in standard form of 10x3 tens

A number is increased by 20% and then deceased by 20%, the final value of the number.

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