Answer:
210 miles in 1 hour
Step-by-step explanation:
steps are in picture
I think the answer is B.
6(-3)=-18, and y=2
so 6x-y=-18-2=-20
U= -1
-9u+6u=-36+39
-3u=3
u=-1
Answer: Here we have a real life multiplication situation for which an estimate make sense:-
Miley has 212 fiction books. Sharon has 3 times fiction books has many as Miley has, how many fiction books Sharon has
Solution :- Number of fiction books Miley has = 212
Number of fiction books Sharon has= 3 times 212
We know that 212 is near to 200 , so round off 212 to 200 (to the nearest hundred)
Thus the product becomes 
Therefore, the estimated number of fiction books Sharon has=600