X/2 + 5y = 12
show steps pls

Which of the following tables represents exponential functions?

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180

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?