Which expressions are equivalent to 4·(7·y) ? drag and drop the equivalent expressions into the box. 28y (7*y)*4 4*7+4*y (4*7) *y 4*7*4*y

4*(7y)

28y

7*(4y)

(4*7)y

Choices A,B D

C is not the same it equals 28 +4y

E  is not the same it equals 112y

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation:

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.