9 first-year teachers and 21 experienced teachers attended a school staff meeting meeting. What percentage of the teachers in the meeting were first-year teachers?

Find the solution set of this inequality. select the correct graph. |8x+16|> 16

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

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