If a circle has a circumference of 6.28 inches, then what is the radius?

What is the sum of these mixed numbers 4 2/3+ 3 1/9

Oliver had $50 on the day before his birthday. after he recived some money for his birthday , he had $75. write and solve eqaution to find how much money oliver received for his birthday. x+50=75

The sum of four times a number and three is two times the number minus twenty nine