Answer:
3/4> 3/5 is true and correct
Here is the equation:

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You need to get "x" by itself so minus 3 from each side

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Divide 8 by 2

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x=4
So each 4 is equivalent to 4
Lets check:

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So that means that Marcus practiced the piano for 4 hours and Donnel practiced for 7
Answer:
270 cm
Step-by-step explanation:
LA = (6+6+6)15
LA = 18(15)
LA = 270