What is the correct mathematical description for the expression 25 ÷ 5 + (6 x 2) − 4.5? 25 divided by 5 plus 6 times 2 minus 4 and 5 tenths 25 divided by the sum of 5 and 6 times 2 minus 4 and 5 tenths 25 divided by 5 plus 6 times the difference of 2 and 4 and 5 tenths 25 divided by 5 plus the product of 6 and 2 minus 4 and 5 tenths