Did you know Thomas Jefferson had a pet hyena

Acircle has a circumference of 7.850 units. what is its radius?

Which strategy is used by public health to reduce the incidence of food poisoning?

For the chance to be team captain, the numbers 1-30 are put in a hat and you get two chances to pick a number, without replacement. which formula correctly shows how to find the probability that you choose the number 1 and then 2?