He orders 3 shirts at $12.00 each for a total of 3*12 = $<<3*12=36.00>>36.00
He orders 2 pair of shorts for $15.00 each for a total of 2*15 = $<<2*15=30.00>>30.00
He spends $36.00 on shirts, $5.00 on socks, $30.00 on shorts and $14.00 on a pair of swim trunks for a total of 36+5+30+14 = $<<36+5+30+14=85.00>>85.00
His order is over $50.00 so he will be charged 20% shipping on his $85.00 order so he'll pay .20*85 = $17.00 in shipping
His order is $85.00 and he's paying $17.00 in shipping for a total bill of 85+17 = $<<85+17=102.00>>102.00
#### 102