Answer:
$13.60 before sales tax
Step-by-step explanation:
$20 x .85 (aka 15% off) = $17
then
$17 x .80 (aka 20% off) = $13.60
I think D because it seems the most reasonable
Answer: y=6^x-3
It is a exponent form of graph, so first:
y=a^x-b
When b=0, the asymptote is y=0 but as the asymptote given is y=-3, b=-3
Second:
the y value increases 6, when x changes 0 to 1, so a=6
