Explanation:
In 1 hour it travels (5x+2) miles.
In (x-3) hours it travels = (5x+2)(x-3)
= 5x(x-3)+2(x-3)
= 5x²-15x+2x-6
= 5x²-13x-6 miles.
When R kills himself because he thinks J killed herself, but really she didn't, so when she woke up and saw R dead, she also killed herself.
I think it is D
Hope this help you?!
