Arthur and Bradley can complete a job in 12 minutes if they work together. By himself, Bradley would take 36 minutes to do the same job. How long would Arthur take working alone?

Roger and natalie travel in similar cars. roger's car drives the two miles to school in 7.5 minutes. natalie drives the same distance in the opposite direction but in only 6.5 minutes. what is true of their velocities?

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?