9 applicants are 3 post find the probability of not selecting any one... plzz help it'z urgent...

What is the perimeter of square abcd? units units 28 units 37 units

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.