Help please please pretty please NO LINKS OR I WILL REPORT YOU please give an explanation I will mark brainliest

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude

Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?