Can you help me pls i dont understand this thanx

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?

What is the solution to the system of equations? y=1.5-3 y=-x