What is the greatest common factor of 8 and 36?
a. 2
b. 4
c. 6
d. 8

The greatest common factor is 4.

Step-by-step explanation:

The easiest way to do this exercise is to make two lists: one with all the factors of the number 8, and another with all the factors of 36. Thus,

Factors of 8 : {1, 2, 4, 8}

Factors of 36: {1, 2, 3, 4, 6, 9, 12, 18, 36}

Then, we found that the common factors are {1, 2, 4}. So, as the larger number in the last list is 4, we conclude that the greatest common factor is 4.

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

it should be a and d. lmk if i'm wrong xd