Elisa withdrew $21 at a time from her bank account and withdrew a total of $147. Frances withdrew $47 at a time from his bank account and withdrew a total of $188. Who made the greater number of withdrawals?

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Which expression is equivalent to 3^3 + 2^2?