Answer:
amanda: 18
Hong: 36
Bill: 26
Step-by-step explanation:
a+b+h=80
b=8+a
H=2A
a+8+a+2a=80
4a+8=80
a=18
I think It's option (B) 45
But I am not sure It's correct or not
I hope It's helpful
question 1 and 3
1/10, 1/20, 12%, 0.15
1/20=1÷20=0.05
12%= 12÷100=0.12
1/10= 1÷10= 0.01