Tina is 4 times older than Hanna. The sum of their ages is 40. How old is Hanna? please help me solve this

Adriana sold 50 shares of a company’s stock through a broker. the price per share on that day was $22.98. the broker charged her a 0.75% commission. what was adriana’s real return after deducting the broker’s commission? a. $8.62 b. $229.80 c. $1,140.38 d. $1,149.00

41/17 as a decimal rounded to the nearest hundredth

Which function has the domain x> -11?