Luisa begin walking up a hill at a spot where the elevation is 0.9 km. After she walked 3 km she saw a sign giving the elevation as 0.95 km. How far will she have walked when she reaches an elevation of 1.1 km?

50- 250 is correct i did that one too

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

answer: y = -2.5x - 15

              (-6,0)

step-by-step explanation: