The Yert family hires a landscaping company for 30 weeks. There are two companies to choose from. Green Lawns charges $2 for the first time they service your lawn, and the price will multiply by a factor of 0.75 every week thereafter. Green Thumbs charges $350 for the first time they service your lawn, and then charges an additional $45 every week thereafter. At 30 weeks, if the Yert family chooses the company that is cheaper, how much money will they save?

is it 35

step-by-step explanation:

21

step-by-step explanation:

10 you would take 50/ .2

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