Test question

As water evaporates from a potted plant, its weight changes at a rate of -1 5/8 ounces per day.

 

Part A 

 Estimate the change in the potted plant’s weight after one week.

Explain your thinking.

 

Part B

Write and solve an equation using exact values to show the change in the

plant’s weight after one week.

 

Part C

Explain how your estimate shows your answer is reasonable.