Tim decides to start selling necklaces he makes.  He uses 10 charms to make each necklace.  Each charm cost $15.  He sells the necklace for $200.  How much profit does he make if he sells 30?
How much does each necklace cost to make? ** Each necklace cost 10*15=$<<10*15=150>>150 to make
How much profit does he make each? ** So he makes a profit of 200-150=$<<200-150=50>>50 each
How much profit does he make if he sells 30? ** So his total profit is 50*30=$<<50*30=1500>>1500
#### 1500