The answer is d= -2an+2s/n^2-n
That answer should be in a fraction form.
Correct answer: the first choice !
2/440 Original Mathematical Expression.
1/220 Divide numerator and denominator by 2.
This equals . . .
0.004545454545 repeating
(I just plugged 1/220 into calculator)
Final Answer: 1/220 or 0.004545454545 repeating
First step: you got to add y to both sides in the math problem Ex: 15x - y + y < 12 + y
Second step: simplify 15x < 12 + y
Third Step: This you got to divide both sides by 15 like this: 15x/15 < 12/15 + y/15
Last and Fourth step: Simplify and thats your answer x < 12 + y/15