In 2015 there were approximately 33,300 firearm fatalities ( homicide and suicides )express the quality in deaths per hour

I am guessing you mean quantity instead of quality so in a year there is 8760 hours, so just take the 33,300 and divide it by 8760.

And you should get something like 3.801 people per hour

Well 24 for hours In a day and 365 for days I’m 2015 24x365=8760. Divide 33,300 into the 8760 hours and you get 3.8. So for every hour in the year of 2015 there were 3.8 firearm fatalities

Ithink it is b and d