Xomadsss9845 Xomadsss9845 01-02-2024 Mathematics contestada The measure of angle RST can be represented by the expression 6x+12. Three lines extend from point S. The space between lines SR and SU is 78 degrees. The space between lines SU and ST is 3x−12. What is m∠RST in degrees?a. 78b. 84c. 120d. 156