Argon, krypton, and xenon are
a. noble gases.
b. lanthanides.
c. alkaline earth metals.
d. actinides.

is there multiple choice answers?

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )

bcde is the incorrect answer it is a