E Example 3
» Jake opened a savings account that earns 1.5%
interest. Jake estimates that, assuming he
neither adds to or withdraws from his account,
he will earn $240 in interest after 10 years. How
much did Jake deposit when he opened the
account?

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.