It has two pairs of same angles: that means that the opposite sides are parallel: this makes it a parallelogram.
He could make 6 squares, because each square has 4 sides. And 24 divided by 4 is 6. The number fact that i used is 24 divided by 4
First convert 1.2mm to cm
10mm = 1cm
so 1.2mm = 0.12cm
Then divide 1.44cm by 0.12cm
that equals to 12.
so you need 12 sheets to make it 1.44cm
A sequence of operations that will get you to the solution is ...
... d. multiply each side by-5, add 25 to each side
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That is not the only correct sequence of operations. However the other ones listed here are incorrect ways to get to x = -10.
You can do whatever multiplication and addition you like to each side of the equation, but if those operations are poorly chosen, they will make finding the solution more difficult.
