Fifty people were surveyed about their favorite flavor of frozen yogurt. The results of the survey are displayed in the circle graph. How many people prefer vanilla?
Which modern country was part of the Persian Empire?

Iran is the modern country that was part of the Persian Empire.

Explanation:

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