Please try to answer both of them its a lot of points

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

Aboat's value over time is given as the function f(x) and graphed below. use a(x) = 400(b)x + 0 as the parent function. which graph shows the boat's value increasing at a rate of 25% per year?

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth