Amanda sells homemade birthday cakes for a profit of $39 for cake she is considering switching to a new type of icing that will increase her profit as expressed by the function y=45x where c is the number sold and y is the amount of profit how many more dollars will Amanda earn in each cake if she switches to the new material? Explain how you found your answer. PLEASE HELP MEEEEE I REALLY NEED THIS !!!!!!! I WOULD APPRECIATE THIS SO MUCH