The curve x sin y = y’ passes through the point P, whose y-coordinate is 2. Show that the corresponding x-coordinate is 4.4. Hence evaluate the gradient of
the curve at point P.

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?