Answer:
Step-by-step explanation:
do ur math better bye doing division
Answer:
, the elevation of the tunnel relative to the ground= -15 meters.
Step-by-step explanation:
Answer: 10.5cm
Step-by-step explanation: the radius is half the diameter. 21/2=10.5
Looks like all you have to do is to translate this expression into symbols:
2.1*10^9