Determine the production cost of 7devices if labour amounts to R4 140 computing components cost is R1035 and the savings on reusable which are subtracted cost is R1 725

The two-way frequency table below shows data on playing a sport and playing a musical instrument for students in a class.

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

Which of the following contains a variable?