How do i use 2/3 - 1/4 using fraction tiles

26) -2(7x) = (-2 • 7) x a. associative property of addition b. associative property of multiplication c. commutative property of multiplication d. commutative property of addition

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

Atransformation t : (x, y) (x-5,y +3) the image of a(2,-1) is