Answer:
or 
Step-by-step explanation:
Remember that
1 hour=3,600 seconds
so
by using proportion

Convert to meters

The following amounts of water have not been listed.
However, to find m all you need to do it;
the amount of water which is in the tank - 124 = x
x ÷ 9 = m
Answer:

Step-by-step explanation:
Combine like terms (terms with the same exponent).

"Standard form" means to list terms so the exponents go from high to low (descending order).