I need help it's easy but not for me

69

Step-by-step explanation:

1. C. h = 2s + 75

2. J. c = 65m + 25

3. C. y = -3/5x + 3

4. F. T = 129c - 75

5. A. y = -0.5x -1

37

step-by-step explanation:

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.