The length and breadth of a rectangle room is 15cmand12cmrespectively if each of these measurement s is liable to 15% error calculate the error in the perimeter of the room

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Jalen charges $25.50 for every 3 hours of yard work he does for his neighbors. ralph charges $34 for every 4 hours of work that he does. who charges less? opinions: 1.they charge the same amount 2.jalen 3.ralph