tiffany is taking her end of course exam. she has completed questions 16 and the prgress bar shows 40%. how many questions are in the tesat

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

3x + 4y = 5 x- 3y = -7 solve by substitution