The cost, in dollars, to produce x t-shirts for a certain company is C(x)=0.8x+ 0.002x^2, x=> 100. How much
production is needed to have a marginal cost of $5.00/t-shirt?​

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals