2 answers:
Answer:
The mistake is in the 1st to 2nd step
They did not distribute 4(7-13).
If they distributed properly, it would be 28-52 instead of 28-13.
Step-by-step explanation:
It’s going to be A. She was supposed to use distributive property
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I think its either A or D
Hope this helps!
Answer:
x=1
Step-by-step explanation:
Answer:
1)20 000 000×12cm
240 000 000/100m
240 000 0/1000
2400km
31.6--1580×100×1000
31.6--1580 00 000
31.6/31.6--1580 00 000/31.6
1:5000000
Answer:
= 40
Step-by-step explanation:
2 ( 3 (5 + 2) -1)
= 2 * 20
= 40
Answer:
I think that the answer's B
