How do I connect with a Tutor?I can't get the option of Tutor

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

You are designing a rectangular pet pen for your new baby puppy. you have 30 feet of fencing you would like the fencing to be 6 1/3 feet longer than the width

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4