At a distance of 3 how long will it take for a car to travel 21 feet

What is this inequality notation? t is less then or equal to 2

Which number completes the inequality? 2/3 < _ < 7/9

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