2 hr 15 min = 2
hours = 2.25 hours
"how far" means distance ... so distance = rate x time
distance = 56 x 2.25 =
126 miles
"how long" means time ... so using the same formula
168 = 56 x time
divide both sides of the equation by 56 to solve
3 hours = time
X = 88°
based on the isosceles triangle, you can solve it.
The y-intercept of the equation y = 4x - 2/3 is 2/3.