What number has a prime factorization of 2^3x3x5^2

1. what are the missing reasons in the proof 2. it's in the second picture and 3

Which of the following is a justification used while proving the similarity of triangles lom and mon

Amovie streaming service charges it’s customers $15 a month. martina has $98 saved up. will she have any money left over if she pays for the maximum amount of months she can afford? explain.