8of the fifth graders going to see a live animal presentation what fractional part of the group is that what percentage is that

When solving a logarithm equation, how do you find the missing variable ?

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

The weight of a rock sample is measured to be 2.5 ponds. what is the percent of error in the measurement?