Will possibly mark brainliest if good !

the table shows the number of desks in each classroom
at three different schools. which expressions represent the total number of desks? select all that apply.

**!

What is the quadric regression equation that fits these data

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x − 8 y is greater than or equal to negative 5 over 2 times x plus 5 part 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 (5, −8) included in the solution area for the system? justify your answer mathematically. (4 points)

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction