80 is 32% of what number

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

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