Answer:
64.96
Step-by-step explanation:
The most common benchmark percents are
and 
We are given
which is closest to
.
Now we calculate
which is equal to
.
We are left with
more to add.
We can say 
Therefore 
Now add the two.

Thus 64.96 is the answer.
Answer:
x=3, y=0.8
Step-by-step explanation:
8x+5y=28
4x+5y=16
Subtract the second simultaneous equation from the first.
You are left with: 4x=12
12/4=3
x=3
Substitute this back into one of the equations.
8(3)+5y=28
8*3=24
28-24=4
4=5y
4/5=0.8
y=0.8
Answer:
Put a pretend dot at number 2 and number -4, then since the line is undefined, it will simply be vertical and look like this: