Which equations show that the set of whole numbers is closed under multiplication?
choose all answers that are correct.
a.
–1 • –1 = 1
b.
0 • –1 = 0
c.
0 • 2 = 0
d.
2 • 1 = 2

Drag the tiles to the boxes to form correct pairs. not all tiles will be used with reference to the figure, match the angles and arcs to their measures. *dpa 124 e0b 114° cob spot xoca 122° c e 2019 orentum arts reserved a 6: 52 pm 6/19/2019 40