Adance school has 63 ballet dancers. if 42% of the total number of dancers in the school are ballet dancers, what is the total number of dancers in the school?

105
150
160
165

The probability that a tutor will see 0, 1, 2, 3, or 4 students is given below determine the probability distribution's missing value.

The length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?

What is the correct answer?urgent you