URGENT consider the rule 7x+5
a) how many tiles are in figure 0?
b) which figure has 54 tiles?
c) make a complete graph with the slope and y -intercept from the rule (dont use a table)

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.