Answer: Option C
, 
Step-by-step explanation:
If the lines m and n are parallel then the large triangle and the small triangle are similar triangles, because they have equal angles.
By definition for similar triangles it is satisfied that if they have sides of length a, b, c and a ', b' and c 'then:

In this case

So:




Therefore
if
and
then 
Finally
, 
Answer:
A.

B. 150
Step-by-step explanation:
Let x be the number of people at the club last year.
The attendance of your club increased by 30% from last year. This means that if the last year attendance was 100%, this year attandance is 100% + 30% = 130%
Thus,
x people - 100%
195 people - 130%
A. Write a proportion:

B. Cross multiply:

Answer:
175
Step-by-step explanation:
I would assume you are asking what 2 + 2 + 9 * 19, and that the image is merely advertisement and irrelevant info for the question.
Anyway, we are solving 2 + 2 + 9 * 19.
<u>PEMDAS: Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction:</u>
That is the order of operations. We can apply that in your equation.
Since multiplication comes before addition/subtraction, we are solving 9 * 19 first. That gives 171.
Now for addition:
2 + 2 + 171 = 4 + 171.
4 + 171 = 175.
Thus, our final answer is 175.