Answer:
-2.736
Step-by-step explanation:
FOLLOW PEMDAS
8.4/4= 2.1
1.6/25= .64
2.1-4.9= -2.8
-2.8+.064=
-2.736
For

the area is

find S
S=(10+11+12)/2=(33)/2=16.5



area=51.5212
rounded
52 square inches
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Since the 40% discount applies to the number of cookies sold above 2 dozen, or 24, then if the number of cookies is c, then c - 24 is the number of cookies above 2 dozen. Answer is B.