P = 3r + 2s --> P - 3r = 3r - 3r + 2s
2s = P - 3r --> 2s/2 = (P - 3r)/2
s = (P - 3r)/2
Answer is a because it is over 4 and it is a negative
1.
A ray starts out at a point and continues off to infinity.
Symbol of the ray with a beginning point in X and passes through point Y is:

Therefore your answer is 
2.
Symbol of a line passing through points A and B is:

Therefore your answer is 
First you can take out a 3. And an x and a y. Thus, 3xy(3x+4y) is the answer.