Answer:

Step-by-step explanation:
something to the power of 1/2 is sqauer root of it
= 4
I'm terrible at math, so I'm sorry if I'm totally wrong, but I'm assuming you just take the average:
20+28=48m
48/2=24m
On average, it may take them 24m if they work together.
Answer:
b, 3 2/3
Step-by-step explanation:
if you add 1 1/3 and 3 2/3 you get 5
Answer:
12.5
Step-by-step explanation:
10, 8, 14, 16, 13, 12
Organize the numbers from least to greatest
8, 10, 12, 13, 14, 16
Normally, the median would just be the number in the middle. However, because there are two numbers in the middle for this data set, add them and divide the sum by 2.
12+13=25
25÷2=12.5
Therefore, the median is 12.5.
I hope this helps!