Write to explain-lucy danced for an hour, practicing ballet, jazz, and tap. she practiced twice as long on jazz as tap. she practiced ballet as many minute as tap . explain whether you have enough information to find the number of minutes she practiced tap. if so, write a number sentence

The bottom of ignacio's desktop is 74.5cm from the floor. ignacio's 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