Work shown above! Answer would be D. hope this helps c:
Mean=total/the number of values =>total=mean*the number of values
the total of the first set of 8 numbers is : total=8*8=64
the total of the second set of 12 numbers is: 12m
the total of the 20 numbers is: 64+12m
the mean of the 20 number is: (64+12m)/20=5
solve for m: 64+12m=100
12m=36
m=3
It would be 123,456,789 (if not counting decimals)
decimals would be like 0.123456789
Answer:
b. these codes are equal volume
Linear functions parabola mostly things in algebra
