Jane’s bank because the rate of Jane’s bank is 4.1%, which is faster than Tommy’s bank’s rate, which is 3.8%.
Factors of the given expression are 
Given expression is

<h3>What is a factor?</h3>
A factor is a number that divides another number completely.
Let us split the middle term as:

Therefore, factors of the given expression are 
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I guess the original function was
y = 5x (1)
y+Δy =5(x+Δx) (2)
(2) - (1) =
Δy = 5Δx
Δx →0, Δy/Δx →5