Four volunteers picked up litter from a park. Dominique collected 15 fewer pieces of litter than Sara. Sarah collected 12 more pieces of litter than piper. Piper collected 1/4 as many pieces of litter than everyone else combined. Let x represent the number of piece of litter Vaughn collected.

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'.

answer: 0,6

step-by-step explanation:

this would make it the y intercept.