A triangle has two sides of length 10 and 19. What is the smallest possible whole-number length for the third side?

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!

Me i'm timed ! a. -2 to 1 b. -1.5 to 0.5c. 0 to 1d. 0.5 to 1.5