The Changs updated their bedroom by purchasing a new lamp for $89.95 and a comforter set for $239.99. They paid 6 3/5 % sales tax on their purchases. If the Changs paid $351.72 total, determine if they paid the correct amount.
a.The Changs family paid $0.33 too much for their purchases.
b.The Changs family paid $0.99 too much for their purchases.
c.The Changs family paid $5.94 too much for their purchases.
d.The Changs family paid the correct amount for their purchases