Answer:
im pretty sure its B
Step-by-step explanation:
I THINK SOOO AHH
a b m n
domain : ] -∞ , 2]
the value of 2-x must be more than or equal to 0
because you there is no square root for negative number
2-x ≥ 0
x ≤ 2
answer:
speed= 72 km - per • hour