Amanda sells homemade cakes for a profit of $39. She wants to switch to a new icing that increases profit as expressed by y=45x, where x is the number sold and y is the amount of profit. How many more dollars will she earn on each cake if she switches tot eh new icing? Explain how you found the answer.

Answer this question! 30 points and brainliest!

To find the extreme values of a function f(x.y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x,y)=xy

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