Answer:
A good rule is to change 10 to 15 percent of the water each week. If your tank is heavily stocked, bump that up to 20 percent each week. A lightly stocked aquarium can maybe get by for two to four weeks, but this should be the maximum length of time between water changes.
Step-by-step explanation:
This is the correct answer you want
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Answer:
26
Step-by-step explanation:
To evaluate this expression, all we have to do is substitute the given values of the variables into the expression. That is, replace every
in the expression with a
and every
in the expression with a 5.
Doing so, we get:

(Substitute given values into the expression)
(Evaluate exponential term)
(Add)
Hope this helps!
EG and FH are diagonals of the rhombus and the bisect each other at the centre to for a righ angle triangle with the side of the rhombus as the hypothenus.
By pythagoras theorem,
5/8 divided by 4 cones= 5/32 so the answer is 5/32.
Hope this helps :)