Given f(x)=2x and g(x)=x2+3, find (g°f)(-3)
1 answer:
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Answer:
Brody purchased 16 songs.
Step-by-step explanation:
Ratio of the number of songs purchased by Brody(B) and Jayliah(J) = 2 : 3
------(1)
Similarly ratio of the songs purchased by Jayliah(J) and Sadie(S) = 4 : 5
-------(2)
If Sadie bought the songs (S) = 30
From equation (2),
J =
J = 24
By substituting the value J = 24 in equation (1),
B =
B = 16
Therefore, number of songs purchased by Brody = 16.