Answer: The first one
Step-by-step explanation: first you have to subtract 5 from both sides and then you have -6n < 6 . Then you have to divide both sides by -6 then you get n < -1.
Answer:
(5,-2)
Step-by-step explanation:
6+4=10
10/2=5
-6+2=-4
-4/2=-2
Answer:
1 is 1600
Step-by-step explanation:
Because 40 people and each person shakes each other hands so its 1600