Answer:
144322221111155554444444333222222
Answer: option 2. x²-1
Step-by-step explanation:
concept to know: a²-b²=(a+b)(a-b)
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(a+b)(a-b)=a²+b²
(x+1)(x-1)=x²-1
Hope this helps!! :)
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Answer:
16% of 500 is $80
Step-by-step explanation:
16% of 500 would be the same as multiplying 500 by 0.16
0.16 x 500 = 80
Hope this helps :)
<span>-3=7+z/2
Subtract 7 from both sides
-10=z/2
Multipy 2 on both sides so that the only thing remaining on the right side is the variable z.
Final Answer: -20= z</span>
