The abortion rate during the 1970s, and has since 1980.

The abortion rate 60% during the 1970s, and has declined since 1980.

d is the answer. leo should include the source.

answer

explanation

the given equation is

we can rewrite this as:

let

then the equation becomes:

the factors of 8 that sum up to -9 are {-1,-8}

we split the middle term with these factors to obtain,

we factor by grouping to obtain:

apply the zero product property to get:

but