Question

this graph shows how the time required to ring up a customer is related to the number of items being purchased. ringing up a customer how long does it take to ring up a customer with 30 items? 90 seconds 40 seconds 50 seconds 70 seconds

Explanation:

Step1: Locate 30 on x-axis

Find 30 under "Items being purchased".

Step2: Match to y-axis value

Move vertically from 30 to the line, then horizontally to the y-axis (Time in seconds). The corresponding value is 70.

Answer:

70 seconds