The ages of four groups of workers are shown. Which group has the largest range?

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.

Hurry which expression is equivalent to 3√x^5y?

Solve the equation for b: a= (1/2)(b)(h)