Answer:
The first one, 10 15 20
45 -5 -35
55 25 -15
Step-by-step explanation:
Answer:

Step-by-step explanation:

by multiplying

You can do 5+5+10, 6+6+8, 9+9+2, 4+4+12, 3+3+14, 2+2+16, 1+1+18. I believe these are all of them, so there are 7 ways.
Answer:
Step-by-step explanation:
well its 4.5-5.25= -0.75
X-2
Hope this helps!
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