Tickets to a concert cost $15 online and $25 at the door. One hundred more people bought their tickets at the door than online. If ticket sales totaled $20,500, how many people bought their concert tickets online and how many at the door?
(Please answer as soon as possible)

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

2.5 milligrams is equivalent to how many grams

Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212