A car drives at a speed of 500 miles per hour. It takes the car "r" hours to reach its destination. Enter an equation that can be used to find the number of hours it will take the car to 450 miles away

What is the value of x in the following equation. -x ^3/2 = -27

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]