The circumference of a round pillow is 46.8 centimeters. Find the radius of the pillow, in centimeters. Round your answer to the nearest tenth.

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

Explain why the factor 1.5 is broke. into two numbers in the model.