It's +4 because each if those numbers increases by 4. Hope this helped:)
The numbers should be less than the denominator, therefore i think it's 5/9 , because the rest have a numerator greater than the denominator, even the 3 . it's written as 3/1 and 3 >1.
Range of Set A=9.1
Range of Set B=5.3
X intercept (-10,0)
y intercept (0,-5)
