Hayley babysat for two hours each night for 10 nights. she earns a total of $300 babysitting. hayley wants to calculate her hour rate. how much did she earn per hour babysitting?

15 dollars per hour

Step-by-step explanation:

If she works for 2 hours each night for 10 nights then she is working for 20 hours total. 300 divided by 20 equals 15

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'.