The sales tax is 2$ Hope this is the answer you're looking for.
We know that
if <span>(ax + b)(cx - d) = 0
then
</span><span>(ax + b)= 0-----> ax=-b------> x=-b/a
and
</span><span>(cx - d) = 0-----> cx=d------> x=d/c
therefore
the answer is the option
</span><span>C. -\frac{b}{a}</span>
Answer: is 3
Step-by-step explanation: this is because you need to divide the two numbers and 3 go into 5 and 15.
A.9×6x - ( 9×2)=
64x-18 = 0
64x=18
x=18/64 =1/3 =0.3
B. 64x+18=0
64x= -18
x =-18/64
x= -1/3
x = -0.3
The graph would be a compressed inside down U shape
(-7,45) (-6,48) (-5,49) (-4,48) (-3,45)
