Answer:
B
I hope this could help you ^^
A=-112 bcs -216 ft is down from sea level and -104 is also down from sea level bcs both values are in minus but -104 is higher than other so you can minus it from -216 the difference is the answer
b=-109
Answer:
clark is faster and his unit rate dont quote me on this but I think its 1
C. Obtuse hope this helps (lmk if you get it right)
(3r^-2s^3t^0)^-3
~~~~~~~~~~~~~~ r (s)
3
=1/3 r^7 s
~~~~~~~~~
27s^9
= r^7
~~~~~~~
81s^8
Answer is =r^7/ 81s^8
