Idon’t under stand how to find the area of a region!

Step-by-step explanation:

Finding an areas of a region is simple. You can take parts of that region and add them. Or you can make a guesstimate of the area of the region like solving the area of a 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'.