How many four-digit numbers can be formed from the numbers 1,3,4,6,8 and 9 if repetition of digits is not allowed ?

Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?

Which statement describes surface features called maria on the moon

Find the least common denominator for thesetvo rational expressions.n^2/n^2+4n+4 -3/n^2+7n+10