clark collects some comic books, some based on history and some fictional. if the ratio of historical comics to fictional comics is 5:2, how many comics could clark have?

The answer is 10:4

Step-by-step explanation:

Its 10:4 because 5 x 2 = 10 and 2 x 2= 4 so that would equal 10:4

step-by-step explanation:

just plug in each number for x and see which ones work and don't

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.