Amy purchased a prepaid phone card for $20 Long distance calls cost $.22 a minute using this card Amy use her card only wants to make a long distance call if the remaining credit of her card is $14.72 how many minutes did her car last

24

Step-by-step explanation:

$20 - $14.72 = $5.28

$5.28 ÷ $0.22=24

answer: what

step-by-step explanation:

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