Answer:
y= $25-$10.50
Step-by-step explanation:
37.5% of her credits. 24 out of 64, divide and you get your answer. multiply by 100 to get the percentage.
To factor you have to do this:
s^2 + 9s = -20
+ 20 +20
s^2 + 9s + 20 = 0
now you need to numbers that multiplied give you 20
and then those same 2 numbers have to add to 9
5 x 4 = 20
5+ 4 = 9
(x + 4) (x+ 5)
that means that x= -4, and -5