Answer:
y = -7x + 17
Step-by-step explanation:
you want to isolate the 'y' variable, start by distributing -7 on the right side
y + 4 = -7x + 21
now subtract 4 from each side
y = -7x + 17
Area is length times width 42x20=840
4^6= 24
24 power 2=24x24= 576
Answer: .4
Step-by-step explanation:
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