HELP, i don't understand this I put all my points pls help me with this

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

What is the solution set of the quadratic inequality x2- 5< 0? o {xl-55x55{x- 155x55){xl -55x5 15){x1 - 15 sx5/5)