Awater tank has a capacity of 6.25kiloliters how many litres does the water tank hold when it’s full

When something has a capacity of x, this means it can hold x when it's full.

1 kiloliter = 1000 liters

6.25 kiloliters = 6.25 x 1000 liters = 6250 liters

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.