Answer: C
Explanation:
replace n=1 with f(n)= 5n-2 we have
f(1)=3 => remove answers B and D
f(n)= 5n-2 so f(n-1)= 5(n-1) -2=5n-7
Try with answers C and D to see if it satisfies this
f(n)= f(n-1)+5= 5n - 7+5=5n-2 => C is correct
9.5m questions
12.2m answers