What is the domain of y= cos O? A.
(-1,1]
O
B.
[0, 0)
C.
all real numbers
D.
2pi

Hannah works at the mall selling book bags. she sold 35 book bags in 5 hours. how many book bags did she sell per hour?

In the 30-60-90 triangle below side s has a length of and side r has a length

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !