Answer: He could drive 623.5 miles on a full tank of gasoline
Step-by-step explanation:
X + 2y = 10 . . . (1)
6y = -3x + 30 . . . (2)
From (2), 3x + 6y = 30
3(x + 2y = 10)
3 x (1)
Since, the second equation is a multiple of the first equation, the system will have an infinitely number of solutions.
C. 1 solution hope it helps
Answer: The second period class has the greater first quartile.