450 people are waiting in a line to buy tickets for a concert, 2 cashiers can process 3 people in 1 minute. If there are 5 cashiers, how long will it take for the last person to purchase a ticket?

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have

5/20 so 25%

step-by-step explanation: