(3,15) is the solution for what equation

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

Find the value of x in each case. give reasons to justify your solutions! d q ∈ pr

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?