Answer:
Since Jim gets $15 for every 3 hours then in order to find the salary for 18 hours, you multiply 15 by 6.
$15 for 3 hours ; 15:3
$? for 18 hours ; ?:18
See it?
Well, you multiply 15 and 6 and you'd get 90.
$15 for 3 hours ; 15:3
$90 for 18 hours ; 90:18
Then, of course, Jim decides to spend his money on some pants for prom. (That prom isn't true, but let's pretend it is.)
So he spends 1/3 of his money for some pair of pants. =3=
So you would do 1/3 multiplied with 90.
That would, of course, result with 30.
So Jim wasted $30 on jeans.
So...
90-30=60
He got $60 left.
