This is part of Zalika's homework

A) Explain the mistake that Zalika made.

B) Work out the correct answer for her.

A) She did not covert them in the same unit before taking the difference

B) 72 - (180/100) = 70.2 cm²

Or,

(72×100) - 180 = 7020 mm²

ou would have 12 of each

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11 -1> 1 -1+ a

-12 > a