The number 9 is what percent of 45?

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?

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.