At the End of September Andy Had $9,000 in His

question 108

Multiple Choice

At the end of September Andy had $9,000 in his daily interest savings account. On the 12^th of October he withdrew $4,000. He made no other withdrawals or deposits in October. The interest rate throughout October was 4.2%. How much interest did Andy earn on this savings account in October?

• A) $9.21
• B) $41.31
• C) $22.90
• D) $19.82
• E) $26.17

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Definitions:

All-or-none Response

A principle that states a neuron either fires at full strength or not at all in response to stimulation.

Action Potential

An action potential is a rapid rise and subsequent fall in voltage or membrane potential across a cellular membrane that is characteristic of excitable cells, such as neurons, as a means of transmission of neural information.

Graded Response

A response that varies in magnitude according to the intensity of the stimulus.

Repolarization

The process of restoring the resting state in a neuron or muscle cell after depolarization, typically signifying the recovery phase of an action potential.