A)line a and line b is your answer.
Answer:
2
Step-by-step explanation:
30+15+12+3= 60
for mammal 30/60=0.50%
reptile 15/60=0.25%
fish 12/60= 0.20%
bird 3/60=0-05%
i hope that helps
-9/2
-2x-5 = 4
+5 +5
-2x = 9
------ ------
-2 -2
x = -9/2
83.66%