Answer:
828
Step-by-step explanation:
To cut the margin of Error in half, the clinic needs quadruple of the sample size.
If the sample size is 207 women,
Then quadruple of 207 = 4 * 207 = 828
(1)
(f+g)(x) = 6x^2+2x-7+4x-3=6x^2+6x-10
(f-g)(x)=6x^2+2x-7-4x+3 = 6x^2-2x-4
(2)
(f+g)(x)=2x-3x+1-2x=-3x+1
(f-g)(x)=2x-3x-1+2x=x-1
2 would be the correct answer:)
