Use the benchmarks to estimate 5/11 + 5/16

The graph shown is the graph of which function?

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13