4. Rose can finish 18 pieces of embroidery in 4 days. Andrea can embroider 22 pieces in 2 days. How many more pieces of embroidery can Andrea make than Rose in 4 days?
A.72
B.44
C.88
D.26
6. What will you get if you divide 620 by 20?
A.21
B.210
C. 31
D.310​