It took 8 weeks because follow 15 to the dot then go down and you see the answer
70
7-0=7
81 or 18
8-1=7
92 or 29
9-2=7
Answer: Most of them cross each other once so I am not sure which one is the answer (sorry)
Step-by-step explanation:
x+y=7 is parallel to 3x+3y=3 and -6x-6y=3
3x+y=-1 and 6x+2y=-2 have infinite solutions togther (both are on top of each other)
The rest of the ways cross each other once
I’d look in the help center but you can probably click on the 3 dots next to your post or contact an admin