Please help i’m unsure how to do this

OPTION A. 5

Step-by-step explanation:

The value of MN is the distance between M and N.

Since distance is always positive we use absolute value. This means, that in contents of this question, M-N or N-M does not make any difference in result.

M=-3

N=2

 | value 1-value2 |

=| M-N |

=| -3-2 |

=| -5 |

=5

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'.