Mental Math: If a module contains 100 squares and 90 of the squares in the model are being used What is the percentage of those squares ?

Which three lengths could be the lengths of the sides of a triangle? 21 cm, 7 cm, 7 cm 9 cm, 15 cm, 22 cm 13 cm, 5 cm, 18 cm 8 cm, 23 cm, 11 cm

Find the value of x. give reasons to justify your solutions! l, m ∈ kn

Jose is going to use a random number generator 500500 times. each time he uses it, he will get a 1, 2, 3,1,2,3, or 44.