Jessica Hughes invested $40 000 on January 1 in a partnership. She withdrew $15 000 on June 1, withdrew a further $2000 on August 1, and reinvested $8 000 on November 1. What was her average monthly investment balance for the year?
A salesperson receives a weekly base salary of $800.00 on a quota of $2900. On the next $2100, she receives a commission of 14%. On any additional sales, the commission rate is 19%. Find her gross earnings for a week in which her sales total $8455.