State a conclusion based on given data, and state your reason for this conclusion. Plz help me we have a test tomorrow.​

Pls brainliest will be awarded if answer is correct

Write the function for the graph. (1.8) (0,4)

Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?