What percentage of the total distance did kiley travel by plane

What is the expression in factored form? 225x^2 - 144 a. 9(5x+4)^2 b. 9(5x-4)^2 c. 9(4x+5)(4x-5) d. 9(5x+4)(5x-4)

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)