Answer:
i think it is D
Step-by-step explanation:
i hope this helped!
p.s it would be cool if you gave me brainliest.
-4(2)+2
-8+2
-6
Hope it helps
39/1.5 = 26 km per hour
51/3 = 17 km per hour
Then you need the mean. 26+17/2 = 21.5 km per hour
Answer:

Step-by-step explanation:
Considering the expression

Lets determine the expansion of the expression




Expanding summation








as





so equation becomes


Therefore,