Mr. Robin assigns 3/4 hour of homework each day to his students for 4 days in a row. How many total hours of homework does Mr. Robin assign to his students?

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

What is the gcf of 20c^3-5c^4+30c^6

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.