The answer is here. Hope I did help you.
Answer:
D, 150 Seniors out of 250
Step-by-step explanation:
Multiply 3*150, and 5*150.
150 over 250 is the same as 3 out of 5.
I hope this helps you
4×[x-y=1] 4x-4y=4
3x+4y+4x-4y=5+4
7x=9 x=9/7
9/7-y=1 y=9/7-1 y=2/7