Answer:
Hello,
Step-by-step explanation:
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<u>Formula used (a+b)^2=a²+2ab+b²</u>

A to line b
b to line c
c to line d
d to line e
e to line a
Answer:
81
Step-by-step explanation:
Its a perfect square and 27*3=81
8.5, since there are 2 significant digits, the only 2 numbers would be 8 and 4, so round at 4 since 5 isn't included by is above and equal to 5
Answer:
Javier has 27, Tommy has 16
Step-by-step explanation:
43-11=32
32/2=16
16+11=27
Check: 27+16=43