For which pair of function is the vertex of g(x) 12 units above the vertex of f(x)

What is the greater volume 72 quarts or 23 gallons

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.

How is this equation completed? i cannot find any examples in the book.