could someone please help me with this:
Brandie lives on the twelfth floor of her apartment building. She walks down 2 flights to visit a friend, then up 3 flights to deliver a message to a neighbor. Which integer best represents the number of flights Brandie must walk to get back to her starting point?
A –12
B –1
C 5
D 7
Brandie lives on the twelfth floor of her apartment building. She walks down 2 flights to visit a friend, then up 3 flights to deliver a message to a neighbor. Which integer best represents the number of flights Brandie must walk to get back to her starting point?
A –12
B –1
C 5
D 7
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12 - 2 + 3 = 13
he needs to walk down 1 flight
-1
Answer:
B
Step-by-step explanation:
12-2=10
10+3= 13
12-13= -1