The cost of painting the total outside surface of a closed cylindrical tank at 60 paise per meter squae is rs237.60. the height of the tank is six times the radius of the base of the tank, find its volume correct to two decimal places.

Step-by-step explanation:

Curved surface area= where R is radius and H is height

Since H=6R then curved surface area=

Therefore,  

and making R the subject

Therefore, H=6R=6*3.000604=18.00362 m

Therefore,

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

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step-by-step explanation:

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