ERMS is selling tickets to a musical performance. On the first day of ticket sales the school sold 8 adult tickets and 4 child tickets for $32. On the second day they sold 5 adult tickets and 3 child tickets for $21.
Find the price of an adult ticket and the price of a child ticket.
Adult ticket (x): $
Child ticket (y): $

(i already asked this but no one responded)

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)