Answer:
When s=2, A=24
Step-by-step explanation:
We are given the formula 
We need to solve and find value of A , when s=2
So, putting value of s in the given formula we can find value of A
The formula given is:

So, by putting s= 2, We get A=24
You can simply expand the factorised form out:
y = 14x² - 21x + 10x - 15
y = 14x² -11x -15
Answer:
x=-1/2
Step-by-step explanation:
using almighty formula
x= -b+or-√b²-4ac/2a
x=-1+ or -√-1+4(1)(1/4) divided by 2(1)
x=-1+ or -√-1+1 divided 2
x=-1+0 divided by 2
x=-1/2
Answer:
$2 per song
Step-by-step explanation:
When you buy 2 songs, you pay $4.
$4 ÷ 2 = $2