Plz !

between x = 2 and x = 3, which function has the smallest average rate of change?
a) y = 6x - 1
b) y = 7x - 2
c) y = 4x + 1
d) y = 4x - 1

B) because the rate of change is 7, while for A the rate of change is 6 and for C and D the rate of change is 4

Answer is B because is make the add is answer

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post