I’m the expression 10a + 4, identify the coefficient

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

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)