the answer is A. 8 1/2, hope this helps
Answer:
C. 8
Step-by-step explanation:
The elevator goes up 51 floors in 12.75 seconds.
Take 51/12.75 to get the number of floors per second.
51/12.75=4
4 floors multiplied by 2 seconds equals 8.
Therefore, answer C is correct.
The answer is rectangular pyramid.
if translated i might be able to help you with the question
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Answer: <DEF & <JKL
they equal 90 degrees
complementary angles equal 90 degrees