Which of the following are right triangle congruence theorems?

Witch represents the inverse of the function f(x)=1/4x-12

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

Yuto solved the equation below. what is the solution to yuto’s equation?