What's the common factors of {20, 48} ?

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

If the discriminant if a quadratic equation is 4 which statement describes the roots?

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice