Multiply to -84 add to 5
multiply to-24 add to -5
multiply to -75 add to -10

Multiplies to -84, adds to 5;
-7 • 12 = -84; 12 + -7 = 5.
-7 and 12

Multiplies to -24, adds to -5
-8 • 3 = -24; -8 + 3 = -5
-8 and 3

Multiplies to -75, adds to -10
-15 • 5 =  -75; -15 + 5 = -10
-15 and 5

I hope that helps!

3.64 deaths an hour.