A box contains 100 balls numbered from 1 to 100. If 6 balls are drawn with replacement, what is the probability that at least two of them have the same number

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

: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?

If 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 165-pound man? 1.0 kg ca 5.1 kg ca 1.0 x 102 kg ca 5.1 x 102 kg ca