At the start of a year, the MLS company's stock initially sold for $40 per share. At the end of the quarter, the company's stock was selling for $50 per share. What was the stock price's rate of return (percent increase)?

Trang is planting shrubs beside the highway for his job. he needs to plant 500 shrubs this week. he planted 84 shrubs on monday, 92 shrubs on tuesday, 87 shrubs on wednesday, and 104 shrubs on thursday. how many shrubs does trang need to plant on friday to finish the job?