High-definition 70" smart TV's are averaging $1,300 currently, but costs are decreasing at a rate of 15% per year. How many years will it take for these TV's to be as low as $500?

don't give

take it once

try and try and you will not

happy to

pls mark as brainliest

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