After batman brought the joker to justice , the crime rate in arkham city decreased by 12%. previously the crime rate was c incidents per 1000 people

Previous crime rate = c incidents per 1,000 people

Reduction in crime rate after batman brought the joker to justice = 12%

Hence, new crime rate (per 1,000 people) would be = c - 12%×c

⇒ New crime rate (per 1,000 people) would be = c - 0.12×c

⇒ New crime rate (per 1,000 people) would be = 0.88×c

Hence, now the crime rate is 0.88×c per 1,000 people.

The new crime rate is 0.88c.

And can be determined by w crime rate is defined as the subtract the previously the crime rate was c incidents per 1000 people from a decrease in percent of crime.

Given

After batman brought the joker to justice, the crime rate in Arkham city decreased by 12%.

Previously the crime rate was c incidents per 1000 people.

New crime rate is defined as the subtract the previously the crime rate was c incidents per 1000 people from a decrease in percent of crime.

Previous crime rate = c incidents per 1,000 people;

Therefore,

The new crime rate is;

New crime rate = previously crime rate - decrease in crime percentage.

New crime rate = c - 12%c

New crime rate = c - 0.12c

New crime rate = 0.88c

Hence, the new crime rate is 0.88c.

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step-by-step explanation:

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'.