Answer:
80
I hope it will be useful.
I think it is $139.30. But I'm not 100% sure
Step-by-step explanation:
71°
31-3x+19x-5=90
16x=90-26
16x=64
x=4
m<R=19x-5 = 19(4)-5 = 76-5 = 71
-6/5
slope =coefficient of x