Answer:
42 mark me as brainlist
42 is the correct answer
Answer: 4
Step-by-step explanation: I think
B. 3&4 are isosceles.
Step-by-step explanation:
Not 100% sure, just kind of makes sense
r = 25+b
n = 3b
n+r+b=435
3b+25+b+b=435
5b+25=435
5b=210
b=42
r = 25+42 = 67
n = 3(42) = 126