Answer:
10
Step-by-step explanation:
20-(5×2)
5×2=10
20-10=10
Answer:
d. does not exist
Step-by-step explanation:
The given limits are;
,
and 
We want to find

By the properties of limits, we have;

This gives us;

Division by zero is not possible. Therefore the limit does not exist.
Answer:
B: 1/5 = 4/x
Step-by-step explanation:
1cm = 5km
4cm = 20km
0.057x 10 is equal to .57. All you have to do is move the decimal to the right one time because there is one zero in 10.