Please help : a dance studio charges 45$ per month , plus 30$ for registration. Willa has 210$ dollar. for how many mounth she can attend the classes.

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241

Is a square always, sometimes, or never a parallelogram

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same