Answer:
no
Step-by-step explanation:
Answer:
speed = 
Step-by-step explanation:
using the formula that relates distance/ speed/ time
distance = speed × time
hence speed =
= 
Artaud is 12 years old, because
28 = 40 + (-1)(x), x = Artaud's age
-1x +40 = 28
-x = -12
x = 12
You multiply x and -1, because that is how you get the opposite.