Marie's clothing store had an accounts receivable balance of $ 470 comma 000 at the beginning of the year and a yearminusend balance of $ 560 comma 000. net credit sales for the year totaled $ 3 comma 600 comma 000. the average collection period of the receivables was: (round any intermediary calculations to two decimal places and your final answer to the nearest day.)

Given: △abc, ab=15, bd=9 ad ⊥ bc , m∠c=30°. find: the perimeter of the triangle.

The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at __ , and the third quartile would be drawn at __ link to graph: .

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?