Josie runs a 25-mile race in 5 hours. What is her speed in miles per hour?

X+ y = 5 ; x - y =3 solve using linear combination

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?

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.