Answer:
Paul can set up his studio and have $378 left over.
Step-by-step explanation:
Consider the provided information,
He needs to purchase four speakers at $435 a piece.
The total cost of four speakers is $435×4=$1740
He needs to purchase two mixers at $772 a piece.
The total cost of two mixers is $772×2=$1544
He also needs to soundproof a room, which will cost him $838.
Thus, the total money he needs to spend is:
$1740+$1544+$838=$4122
Paul has $4,500 in his savings account.
It is clear that $4500 is more than $4122.
$4500-$4122=$378
Hence, Paul can set up his studio and have $378 left over.