A pair of dice is rolled and the numbers showing are observed. Find the probability that the two dice show different numbers.

Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account.write an expression to represent the total amount in his savings account.