Answer:
A.
Step-by-step explanation:
Slot method
20 options
3 slots
First slot: 20 options
Second slot: 19 options (one used up for 1st slot)
Third slot: 18 (one less than last)
Multiply them
20 times 19 times 18=6840
Answer is 6840 ways
Answer:
x= 0, 1/2
Step-by-step explanation:
Answer:
16 is the Highest Common factor of 32 and 48
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