Answer:
C dont trust me wait for someone else to anser
Step-by-step explanation:
2x+5y=21, x+y=3
y=3-x
2x+5y=21
2x+5(3-x) =21
2x+15-5x=21
2x-5x+15=21
-3x+15=21
-3x=21-15
-x=6/3
-x=2
x=-2
Step-by-step explanation:
7a+5b+301 should be simplify
Answer:
0.318
Step-by-step explanation:
The other angle is 65 degrees