A student gives his friends small, short-term loans for periods of 1, 2 or 3 weeks after
which time they must be repald in full. He
always lends on a Friday afternoon. He starts
with €120
and loans
out the following
amounts each week:
week 1:€45
week 2:€25
week 3:€18
week 4:€20

what is the smallest amount of money he has
by the end of the 4th Friday?

dude thats to long figure it

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