Which expression can be used to find the surface area of the following square pyramid? A: 10+10+8+8+8+8
B: 100+40+40+40+40
C: 100+80+80+80+80
D: 100+80

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

that is the sum

step-by-step explanation:

there are no other answers without knowing the variables values