Respuesta :
it is c.
according to the property of one. any number times one keeps its identity.
ex:21x1=21 20x1=20 19x1=19. the number doesn't change if you multiply a number by 1
according to the property of one. any number times one keeps its identity.
ex:21x1=21 20x1=20 19x1=19. the number doesn't change if you multiply a number by 1
The property of one states that u can multiply one to any number and it keeps its identity.
21 * 1 = 21....property of one
21 * 1 = 21....property of one