Answer:80%
Step-by-step explanation: If you divide 16 and 20, you get 0.8 and multiply that by 100, you get 80%.
Answer:
f(x)=7x+4
When x=-8
f(-8)=7·(-8)+4=-56+4=-52
When x=3
f(3)=7·3+4=21+4=25
When f(x)=67, then :
7x+4=67
7x=63
x=9
