The two triangles will be similar (same shape, and each side of one triangle the same multiple of the corresponding side of the other triangle), but not necessarily the same size.
The key word here is "similar;" be sure you understand what that means in trig.
X = number of weeks
1 week =
3x = $90
Divide by 3
3x/3 = x
$90/3 = $30
1 person = $30 per week
x 5
5 people = $150 per week
x6
6 people = $180 per week
Answer:
the last one is 42m my pen was dying halfway i am so sorry HAHAHAHHA
Yes 9.1 is the same as 9.10. .10 is greater than .08