Please help Mr. Chen filled his son's play pool with 20 gallons of water.
20 gallons is equivalent to how many quarts?
O 80 quarts
O 60 quarts
O40 quarts

80

Step-by-step explanation:

There are 80 quarts in 20 gallons.

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'.