The PH of a solution with a hydronium-ion concentration of mole per litre is given by PH= -log[H^+], A sample of blood has a PH of 7.3. Find the hydronium-ion concentration of blood?​

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y > 2x + 3y is less than negative 3 over 2 times x minus 4part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points)part b: is the point (â’4, 6) included in the solution area for the system? justify your answer mathematically. (4 points)