Technically speaking, the answer is 5 because of where the curves are located.
Never mind my speech, just look at the graph, the answer is 5.
Hi!
100/10 = 10
If Michelle only buys paper weights, she can buy 10 of them with $100
2r-6+5r=3-r+7
7r-6=10-r
7r+r=10+6
8r=16
r=16/8
r=2
The first equation is

The second equation is

If you sum the two equations you'll cancel y:

And since the sum must be 11, we have y=9.
Answer:
36 black socks
Step-by-step explanation:
white socks: black socks
1 :3
We have 12 white socks so we multiply each term by 12
1*12 : 3*12
12:36
We have 36 black socks