Answer:
the total is 80 cm^2
Step-by-step explanation:
just because you should multiply by 2 40*2=80 cm^2
i hope this helps
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1*1+9∗0.001
Hope this helps
Answer:
since 20% is 100
then 80% is 400
Therefore 500 in total to begin with.
Answer:
1,3 a square = 1,9 b. Yes orthogonal
Answer:
Below.
Step-by-step explanation:
This is the correct solution:
6 - 2x + 5 + 4x
= -2x + 4x + 6 + 5
= 2x + 11.
It looks like they added unlike terms together (4x + 5) to give 9x (incorrect) then added the 4x to give 13x.