Simplify the expression. [(-1)^3/(-3)^-3]^2

Ineed with number 17 i don’t get it at alll

If g^-1(x) is the inverse of g (x) which statement must be true

Talia took the bus from her home to the bank and then walked back to her home along the same route. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. to determine the time, x, that it took talia to walk home, she used the equation 40(0.9 – x) = 5x. the time of trip 2 is hours. the distance of trip 1 is km.