Step-by-step explanation:

1.john rented a computer in a computer shop with a rate of P15/hour.

2.If y varies directly as x and inversely as z, and y=22 when x=4 and z=6find y when y when x=4

3.If x varies inversely as y, and x=7 when y=3,find y when x=9.

4.Less men will require more days to complete the work.

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7.more speed, less time is taken to cover the same distance.

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9.A car runs x hours with the speed of 60km/hr.

10.If f varies jointly as g ang the cube of h, and f=200 when g=5 and f=4, find f when g=3 and h=6.

11.If x varies directly as y and x=9 when y=6, find x when y=15.

12.if a varies inversely as squarre root of band a=7 anf b=36 find a when b=289.

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