The numerical factor<span> of a </span>multiplication expression like 3x<span> is calied a coefficient</span>
The proportion used is:
x/120 = 9/100
Cross multiply:
100x = 1080
Divide:
x = 10.8
Add:
120 + 10.8 = $130.80
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6 pairs + 11 pairs = 17 pairs
They started with 17 pairs.
Hope this helps.
Answer:
4 percent
Step-by-step explanation:
because the new value is greater than the old value