Question

write a function to describe the following scenario.
a grocery store cashier can ring 0.45 items per second. how many items can the cashier ring after a certain number of seconds?
( y = ?x )

Explanation:

Step1: Define variables

Let $y$ = total items rung, $x$ = time in seconds.

Step2: Relate rate to function

Total items = rate × time.
$y = 0.45x$

Answer:

$y = 0.45x$