If R is the midpoint of segment QT, QR=12x+20 and RT=8x+48 find the value of x and QT

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?

Sum of the interior angles of a pentagon

In the diagram below,abc is congruent to dec what is the value of x