Help me rq ! Ron is solving the linear equation 18+ 3x - 11 = 9x + 9 - 6x. His final two steps are: 7 + 3x = 3x + 9
7= 9
Select the statement that correctly interprets Ron's solution.

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

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.

Which expression is rational? 6. , square root two, square root 14, square root 49