What two numbers have the product of 0.2 and the quotient of 0.8

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.

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Consider the function f(x)=-5x+3 what is f(-2)