Sorry I'm in high school.. but according to my physics class, the instantaneous speed is when t (time) is 0, or whatever you'd use (like x).. anyways, when t=0, the instantaneous speed would be 3 ft/s, and the instantaneous acceleration is 0.
X is 65 because there is a theorem saying that when a transversal crosses two parallel lines, the corresponding angles are congruent. Since x is the other side of the corresponding angle of 115, you have to do 180-115, since a straight line is 180°.
2.5 rounded to the nearest tenth is: 3
3.5 rounded to the nearest tenth is: 4
2 rounded to the nearest tenth is: 2
The answer that I got for this question:
x<3