If csc b = b, which number below is not a possible value of b? -1.75 0.5 1 1.05

With #! i’ve tried to figure it out but i can’t.

What is the prime factorization of 195

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?