M + 4 = -12

and

v - 15 = -27

The AR-15 came first, in 1947; the M16 a decade later. They have the same magazine capacity: 30 rounds. The former is heavier, with a shorter range and slower rate of fire, but these are subtle differences. Overall, the weapons are pretty simila

Step-by-step explanation:M4 carbine

Carbine, Caliber 5.56 mm, M4

ManufacturerSee Manufacturers below

Unit cost$700 (avg. cost)m= -16

v= -12

Step-by-step explanation:

m + 4 = -12

m= -4-12

m=-16

v - 15 = -27

v=-27+15

v= -12

Produced1991–present

VariantsM4A1 Mark 18 Mod 0 CQBR

m= -16

v= -12

Step-by-step explanation:

m + 4 = -12

m= -4-12

m=-16

v - 15 = -27

v=-27+15

v= -12

a) 32pie square meters

step-by-step explanation: