Answer:
a.) f(x) = -⅙(x+3)²+6
Step-by-step explanation:
The maximum value, our vertex, is at point (-3,6).
We can insert this value into the vertex form of a quadratic function and then solve for a as follows...

a equals -1/6... We can input this into the original equation we used...
f(x) = -1/6(x+3)^2+6
Good luck on the bellwork ;)
10LW=V
L/10W= V/10W
L= V/10W
Answer:
72 songs.
Step-by-step explanation:
0.07 x $100 = 7
100 - 7 = $93
$93/$1.29 = 72.093 ⇒ 72 songs