Yes they’re similar, but since length is 18 for the large triangle and 6 for the smaller one you’d need to take 6 times 3 to equal 18 so i think you need to divide 12 by 3 to get the length of BS which would end up being 4 if i’m right
X = 6 , y = -2
hope this helps
Sum of a finite geometric series=a(r^(n) -1)/(r -1)
or
sum of a finite geometric series=a(1 - r^(n))/(1 - r)
the Smiths would spend a total of $2928.2 on clothing in 4 years
This should be the correct answer.
