What is the expression and value of "six less than the quotient of a number and two, increased by ten" when n = 20? startfraction n over 2 endfraction minus 6 10; when n = 20, the value is 14. 6 minus startfraction n over 2 endfraction 10; when n = 20, the value is 6. startfraction n over 2 endfraction minus 6 10; when n = 20, the value is 17. 6 minus startfraction n over 2 endfraction 10; when n = 20, the value is 3.