Acompany bought 12 boxed lunches from a delli for $74.50 each boxed lunch costs the same amount which equation represents the proportional relationship between y the total cost of the boxed lunches and x the number of boxed lunches

answer: 180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

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