( 4 + − 5 ) × ( 7 − − 3 )
2 answers:
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Answer:
Step-by-step explanation:
We remove the bracket and rearrange the numbers to add them. Only similar variables can be added together.
Answer:
C
Step-by-step explanation:
Therefore, the answer is C. Hope this helps!
We know that they have:
2 entrences
3 ways to chose (escalator,elevator and stairs)
8 gates
and again 3 ways to chose (escalator, elevator and stairway)
now you have to multiply it:
There are 144 different ways that Anita and Terry can go from street level to the trains:)
2 entrences
3 ways to chose (escalator,elevator and stairs)
8 gates
and again 3 ways to chose (escalator, elevator and stairway)
now you have to multiply it:
There are 144 different ways that Anita and Terry can go from street level to the trains:)