Find the Indicated Sum $a _ { 1 } = 3 , r = 2 ; \text { find } s _ { 4 }$

question 69

Multiple Choice

Find the indicated sum.
- $a _ { 1 } = 3 , r = 2 ; \text { find } s _ { 4 }$

• A)15
• B)21
• C)160
• D)45

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Definitions:

Reaction Time

The interval of time between the presentation of a stimulus and the response to it, often used as a measure of sensory and motor performance.

Stimulus

A change in the environment that leads to a change in behavior.

Response

A reaction or reply to a stimulus or situation, which can range from physiological reactions to complex behaviors.

Gross Motor Sophistication

The advanced development of large muscle activities, such as running, jumping, and throwing, that are typically refined during early childhood.