There are 6 entrances to a haunted house. if you do not exit the same way you entered, how many different ways can you enter and exit the house ? a. 25 b. 30 c. 36

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i

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.