ESCALATING prices are causing hadship to the poor .

A teacher designs a test to find out the cause of the poor grades of her learners through a/an

If the increasing in time causes a corresponding decrease in the price of the product. identify the proportionality.

Write two causes of poor health?

A boy reaches the airport and finds that the escalator is not working. He walks up the stationary escalator in time t_(1) . If the remains stationary on a moving escalator then the escalator takes him up in time t_(2) . The time taken by him to walk up on the moving escalator will be :