She orders 2 quiches for $15.00 each so they cost 2 * 15 = $30.00. She orders 6 croissants at $3.00 each so they cost 6 * 2.5 = $18.00. She orders 6 biscuits at $2.00 each so they cost 6 * 2 = $12.00. Her advance order is 30 + 18 + 12 = $60.00. Her advance order is over $50.00 so she can get 10% off so .10 * 60 = $6.00. Her order is $60.00 and she gets $6.00 off so her advanced order will cost 60 - 6 = $54.00.
This justifies what answer for what question? Q & A:
Silvia's bakery is offering 10% on advanced orders over $50.00. She orders 2 quiches for $15.00 each, 6 croissants at $3.00 each and 6 buttermilk biscuits for $2.00 each. How much will her order be with the discount?
54