What is 11/4 multiplied by 1/9 in fractions

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

Pick the expression that matches this description: a polynomial of the 5th degree with a leading coefficient of 7 and a constant term of 6 (choice a) 7x^5+2x^2+6 (choice b) 7x^6−6x^4+5 (choice c) 6x^7−x^5+5 (choice d) 6x^5+x^4+7

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.