A teacher has 4 trays that each contains 177 rings. After combining the rings in all 4 trays, the TOTAL number of rings is closest to
A. 540 rings
B. 810 rings
C. 720 rings
D. 900 rings
E. 630 rings
A. 540 rings
B. 810 rings
C. 720 rings
D. 900 rings
E. 630 rings
