Zach did 1/6 of his math homework in 1/2 an hour. How much can he do in one hour? (please show some work :)

He can do 2/6 of his math homework in an hour.

Step-by-step explanation:

If there is 1/2 an hr. and you just double 1/6 to get 2/6.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.