Find the area of the triangle​

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)

(x-5)1/2+5=2 what is a possible solution?

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?