Answer:
Step-by-step explanation:
3-k-4-k=k+11
Collecting like terms
-k - k - k = 11 +4 - 3
-3k = 12
Dividing each term by -3
k = 12/-3
k = -4
Answer:
A. 154 
Step-by-step explanation:
The formula for the area of a circle is 
First find the radius by dividing the diameter by 2, which is 7


≈154 
Answer:
4.5
Step-by-step explanation:
Put numbers in order, 1,3,3,4,5,8,9,12
Divide by 2 because there are 2 numbers
Because 4.5 is in the middle of 4 and 5 that is your median
Answer:
60
Step-by-step explanation:
400 liters ........ hope this helps