Answer:
25.40
Step-by-step explanation:
5 rounds up but 9 rounds up to ten so you add one to the tenths
26.8°
4x - 20 + 6x - 7 = 90
10x -27 =90
10x = 90+27
10x= 117
x = 11.7
so, the angle R = 4x-20 =4(11.7)-20
= 46.8-20 = 26.8°
See photo
=
1 = slope intercept
