A manufacturer of gas grills has a daily production cost of c=400 -5x +0.125x squared where x is the number of gas grills produced. How many units should be produced each day to yield a minimum cost?

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'.

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.