Match each exponential equation to its percent rate of change.
80% growth
80% decay
40% growth
40% decay
60% decay
20% growth
20% decay
60% growth
60(0.8)*= 1.4
80(1.6)t=20

The length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?