What location on the line would you find the constant of proportionality?

How can you find the mean absolute deviation (mad) for this set of data?

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625

Sherrie is baking a pie for her family. she leaves the room and comes back to 35% of the pie having been eaten before she can put the topping on. how much 1 square inch strips of dough will she need for the top, now that a portion is missing? round your answer to the nearest while nimber.