Question

Martha estimated there were 99 marbles in a jar for a contest. The actual number of marbles in the jar was 121. What was the percent error of Martha's estimation?

Answer 1

22%
18.18%
81.82%
22.22%

Answer 2

idk how to do this problem can you explain it more

Answer 3

\[\frac{ 121-99 }{ 121 }\times 100=?\]

Answer 4

ok here is what you do now you have to do this equation which should give you the answer -99 times 100