Please help answer this explain your answer will give Brainlst .

What is sin 7x/4 ? i need on this urgent trig

For each proportion find the unknown number x 1/5/8=×/15

Select 2 statements that are true about the equation y+6=-10(x-3).1) the slope of the line is -102) the slope of the line is 33) one point on the line is (3,6)4) one point on the line is (3,-6)