The sum of triple a number and the product of four and five
[1] 3n(4*5)
[2] 3n(4+5)
[3] (3+n)*(4*5)
[4] 3n+4*5
[ triple a number ] plus [ the product of 4 * 5 ]
[ 4 ] 3n + 4*5
Thank you
OK.....!!!
+-9 
