Answer:
7.8 (1dp)
Step-by-step explanation:
k=180-161
k=19°
180=18z+3+5z-3
180=23z
z=180/23
z=7.8 (1dp)
Answer:16.50
Step-by-step explanation: hope it helps
32÷2/160÷2
=16÷2/80÷2
8÷2/40÷2
4÷2/20÷2
2÷2/10÷2
1/5
the answer is 8 by one of this question.
