Hey there! :D
Remember that the question said estimate.
So
47% rounds to 50%
.5 and 1/2 are equal to 50%
89 rounds to 90.
You could say that:
1/2*90
0.5*90
90/2
These will all work and will give you the same answer.
I hope this helps!
~kaikers
Answer:
I'm not sure which you mean, so I'll give the answer to both:

Answer:
Its b
Step-by-step explanation:
The number line is saying people spend 70 n below.
Answer:
A & D
Step-by-step explanation: