Answer:
y= positive 7
Step-by-step explanation:
Answer:The third one 5n(4m-3)
Step-by-step explanation: easy
-2a+4 because you have to distribute
Answer: b is about 13.8 or choice A.
See picture reply.
You can find the mean of negative numbers just the same as for positive numbers. It doesn't hurt for the mean to be negative.
For example, with the number -9, -5, -4, -3, -1 you can find the mean jsut as any other numbers
-9+-5+-4+-3+-1=-22
-22/5=-4.4
the mean for those set of numbers is -4.4
