5 - sqrt 2 / sqrt 3 how can you write the expression with a rationalized denominator

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?

How do i do this activity, is appreciated

Combine like terms to make a simpler expression 3z+z