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# Sleeping Habits

ALGEBR-ESI1X5

As a person ages, studies have shown that the amount of time spent sleeping tends to decrease. Let $a$ = age, and $s$ = sleep. Identify the independent and dependent variables.

A

$a$ = age, independent
$s$ = sleep, dependent

B

$s$ = sleep, independent
$a$ = age, dependent

C

$Neither$