Fraction-Decimal-Percent Equivalents

It's D) I looked up What percent is equivalent to 2/3 and it said 66.6666667 percent and then I looked up 66.6666667 percent as a fraction and it said 66 7/10

Step-by-step explanation:

both equations and proportions are better.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.