Answer:
Step-by-step explanation:
3a3 (-3a2 + 5a - 5)
Product: -9a5 + 15a4 - 15a3
3a3 (-3a2 + 5a - 5)
Visualize pi/2 as 90° on the unit circle. this has no real component, only imaginary. same for 3pi/2, or -pi/2 as shown in this equation:

as you move around the unit circle, you'll find that 9pi/2 is the same angle as pi/2.
Thus, the rectangular coordinates are:
y/x =k
13/9 = 1.4444444
39/27=1.4444444
104/72=1.4444444
k =13/9 = 1 4/9
this is direct variation with a constant of 13/9 or 1 4/9
You can do 200*.3(300 percent) and get 60.Subtract 60 from 200 and u get 140.
200 200
* .3 - 60
--------- ---------
60 140
this is one of the ways
The cost should be the same on day 3