1. N=x+3
S=2(x+3), or Sam=2x+6
[A+7= 28] is the correct equation I believe, though I may be wrong.
Answer:
A
Step-by-step explanation:
will she would have rode 4 3/5 miles in all.
2 3/10+2 3/10=4 3/5
that is 2 3/10 there and 2 3/10 back so you would add that together.
MILES IN ALL 4 3/5
Hope this helps
You have to do whatever is in the parentheses first which gets you:
4-(-2)
Two negatives equal one positive so it would be:
4+2
And 4 plus 2 is of course 6.