Which of these advances did Han scientists make? Select all that apply. A: developed the concept of zero
B: devised the base-20 number system
C: created more accurate calendars
D: invented the compass
PLZ HELP QUICK IM DOING THE TEST RN

3795

Explanation:

because if you use Q=P x W you well need ti find Q so first turn 6.9% in ti 0.069 and times it by W which is 55,000 and that well give you the answer

i believe your answer is d)

many women had to remain at home while husbands found work.

explanation: