Spencer and his good buddy Preston are both mechanics at a shop that does oil changes. They are in a friendly competition to see who can complete the most oil changes in one day.

the first one, all those points on the line just make a strait line.

answer: 1 + 1 = 11

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

765238725478629038640962136509762139056074

step-by-step explanation:

64087235609746097215074621039754021037