Answer:
Area = l x w
Area = (x + 1)(x + 7)
Area = x² + 7x + x + 7
Area = x² + 8x + 7
Step-by-step explanation:
2.A
3.C
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Answer:
1. mean 2. mean absolute deviation
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
because 9-1=8/2 equals 4 so2x4+1=9