Answer:
a 16
Step-by-step explanation:
16 x 12 = 192 plates
496 total plates - 192 = 304
304 packages of 8 plates
304 / 8 = 38 sets of 8 plates
38 + 16 = 54 packs of plates
400 miles.
Gallons used = 16 - 4 = 12 gallons.
Miles driven = 12 / 0.03
= 1200/3
= 400 miles.
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19