Justin bought 40 packs of baseball cards for a discounted price of 64.if he sells 10 packs of baseball cards to a friend at cost how much should he charge

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

Ineed with math stuff it involves graphs

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.