Answer: see proof below
<u>Step-by-step explanation:</u>

Answer:
17
Step-by-step explanation:
49-32=17
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Hope this helps!
Answer:
I think it's figure b
Step-by-step explanation:
Answer:
9676
Step-by-step explanation:
100^2- 18^2= 9676
Answer:
58 minutes
Step-by-step explanation:
Kelvin and Ornella completed the course in 1 hour 52 minutes
60 minutes + 52 minutes
= 112 minutes
Kelvin time is 54 minutes
Kelvin time is 4 minutes less than ornella
Hence Ornella time is 58 minutes