Answer:
Option 4: 12.7
Step-by-step explanation:
You can look at the diagram as two 45º45º90º triangles.
By the properties of a 45º45º90º triangle:
OW=WL=a
OL=a√2
a√2 = 18
a=18/√2a≈12.728
-7.08 = -(7 + 0.08) = -(7 8/100) = -7 2/25
The equation would be 12x+85=y
x= # of people
y= Total amount of money
Edit: I did #4 sorry
Answer:
20x?
Step-by-step explanation:
Answer:B
Step-by-step explanation: