A person stands 121212 meters east of an intersection and watches a car driving away from the intersection to the north at 444 meters per second. At a certain instant, the car is 999 meters from the intersection. What is the rate of change of the distance between the car and the person at that instant (in meters per second)

1. which of the following algebraic equations is equivalent to ? x^n = a a^n = x a^x = n x^a = n 2. 16^1/4= 1/2 2 4 3. (-36)^1/2= -6 1/6 no real number 4. 8^2/3= 4 8 16√2 )^5/2= 7,776 1/7,776 no real number 6. m ^ the square root of a^2m simplified is: 7. the square root of 3^3 times the square root of 2 simplified and in radical form is: