Answer:
it's D. $3672 for this question
Answer is in the photo. I can only upload it to a file hosting service. link below!
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The solution is B. (3,-2)
First find slope intercept for our equation
-6x+3y=18.9
3y=6x+18.9
y=2x+6.3
Since b is y intercept, y intercept is (0,6.3)
Now in x intercept y is equal to 0.
So substitute it for our equation.
0=2x+6.3
-2x=6.3
x=-3.15
So x intercept is (-3.15, 0)
2^(16x)=16^(2x)
16=2⁴
2^(16x)=(2⁴)^(2x)
2^(16x)=2^(4*2x)
2^(16x)=2^(8x)
Therefore:
if a^n=a^m ⇒n=m
16x=8x
16x-8x=0
8x=0
x=0/8=0
Answer: x=0