Ahemispherical tank is filled with water and has a diameter of 10 feet. if water weighs 62.4 pounds per cubic foot, what is the total weight of the water in a full tank, to the nearest pound?

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The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?

Y+ 2/y is it a polynomial in one variable or not? and if so, why?