Answer:
Step-by-step explanation:
Nbv
Answer: 4i
I don't get your question
9 + 3a -4 - = a +20-15
3a - a = 20 -15+4-9
2a = 24 - 24
2a = 0
49%=0.49
0.49x15=7.35
49% of 15 is 7.35