Decay equation= P*(1-r)^t
P= Principal amount= $30,000
r= rate=0.065
t= time (in years) =5
x=30,000(1-0.065)^5
The value of the car in 5 years is approx. $21,438
The form of linear equation that describes line is:

First we must calculate the slope.

Now it looks a bit more like this:

All we need now is to put in y and x from one point doesn't matter which. I'll pick A.
The equation now looks like this:

Solve for n.

And finally write the equation.

Hope this helps.
r3t40
That question is rly badly organized but i think it’s 70
300 - 3x = 24
-24 -24
276 - 3x = 0
+3x +3x
276 = 3x
276/3 = 3x/3
92 = x
x = 92