Name the following polynomial based on its degree and number of terms x to the power of 2 plus 6x - 4

Restrictions on f(x) = 1/x+5 and g(x) = x-2

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.

Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?