Micah is preparing for a piano recital. He practices for 50 minutes on Monday and 90 minutes on Wensday

She increased 80% the practise time

Step-by-step explanation:

The question is incomplete, the following is missing:

by how much did she increase the time she practised each day?

From Monday to Wednesday she increased 90 - 50 = 40 minutes the practise time.

To compute the increment as a percentage use: increment/reference * 100

In this case, that is: 40/50*100 = 80%, where 50 minutes is taken as a reference.

80%

Step-by-step explanation:

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