Answer:
11
Step-by-step explanation:
The lines on the outside simply means "absolute value". This just takes any negative number and makes it positive. In this case, 15-4 is already positive so the answer is just positive 11.
30 minutes
Because it would take her an hour to go 8 miles and she is only going 4 so it is half an hour
The place value that would compare the numbers is the ten thousands.
Answer:
-5a+4
Step-by-step explanation:
3a - (8a -4)
