If ay = 9 and an = -5an-1 + 5 then find the value of az.

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The answer would be 10 because 9+-5=4+-1=5+5=10

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