Zoe has a collection 78 movies. each one cost 29.99. how much did she spend on all her movies.

Combine like terms to make a simpler expression 3z+z

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

What makes a trapezoid an isosceles trapezoid?