**Answer:**

reorder 7e^6x and -5x^3

y=-5x^3 +7e^6x +3e

**Step-by-step explanation:**

Now thats if its 7e to the power of 6x

**Answer:**

9

**Step-by-step explanation:**

3x+18+9x-27=99

12x-9=99

12x=108

x=9

**Answer:**

**Step-by-step explanation:**

the slope of the line perpendicular is -8 (negative recriporal of line)

substitue (3,5) in equation: y = -8x+b

5 = -24+b

b = 29

**the equation is y = -8x+29**