In triangle abc above, angle a is bisected into two 60° angles. if ad = 10, and ab = 2(ac), what is the length of bc?

The graph of which equation includes the points (0, 10) and (10, 11)? y = 10x + 11 y = x + 10 y= 1/10x + 10 y = 1/10x + 11

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 negative 3/9 times negative 2/8 ?