Answer:
c in any set of ordered pairs,the second coordinate is called domain
Step-by-step explanation:
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B, and D
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7p−q−12
84
20*4=80+4
The 8.39-kg bag
19.99 divided by 7.98 = $2.51
20.38 divided by 8.39 = $2.43
2.51 > 2.43
So 8.39-kg bag is the better buy