Answer:
4d (the variable is usually x, though).
Step-by-step explanation:
Because 4 x the amount of fish in each tank = total amount of fish
Answer:
x = 12
Step-by-step explanation:
To solve this and show your work, you have to start of with the equation (3x - 6) = 30.
You then have to add 6 to both sides like this:

So then the 6 is cancelled out, and you are left with
3x = 36.
Now you just have to divide both sides by 3 like this:

Which cancels 3 out, and you are left with
x = 12.
Answer:
18
Step-by-step explanation:
median is the number in the middle of the set of numbers
Answer:
Step-by-step explanation:
Given the expression
, to evaluate this, we will use one of the law of indices as shown;



Mario's error was that she did not raise the value of 4 to the power of -3. She only raised z^8 to the power of -3 when it is supposed to affect both 4 and z^8
Answer:
Low cost will result in more supply and low customer demands as demands decrease this will result in increase of supply,so low unit cost will is better value only if you purchased all the items to get lower unit rate.