A certain star is 2.7 x 10 to the power of 2 light years from the Earth. One light year is about 5.9 x 10 to the power of 12 miles. How far from the earth​ (in miles) is the​ star?

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

6 adults and 9 children went.

a + c = 15

12a + 9c = 153

12(6) + 9(9) = 153

72 + 81 = 153

question 1: step-by-step explanation:

1/4 of 84 = 84÷4= 21

i belive the biggest ratio would be 18: correct me if im wrong