Tell whether the system has one solution infinitely many solutions or no solution.
1.5x+2y=11 3x+6y=22 a. one solution b. infinitely many solutions c. no solution.

Ineed with number 17 i don’t get it at alll

Find the cosine function that is represented in the graph.

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.