There are 112 seats in the school auditorium. There are 7 seats in each row. There are 70 people seated, filling up full rows of
1 answer:
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Answer:
(a) 4
(b) 4 * (7+3)
Step-by-step explanation:
(a) Let's first start by prime factorizing (finding the prime factors) 28 and 12:
12: 2*2*3
28: 2*2*7
We can see here they both share a common factor of 2*2, which is 4, therefore the GCF is 4.
(b) Factor a 4 out from the equation:
This gives us:
4 * (7+3)
Therefore, (1/7)³ = 1/343, implying that the answer is option (D).
Hope it helps. :)