What you want to do, is isolate the y by itself to rewrite the equation as y=mx+b. So when you move the 5x over the equation looks like this -6y=-5x+30. Then you divide the -5x+30 by -6 to isolate the y. Thus making the equation y=5/6x-5. And since there is only one answer with the y-intercept as (0,-5); The answer is A.
Answer:
the first equation could be something along the lines of
then the second is 
Step-by-step explanation:
this is how shifting works
Answer:
27
Step-by-step explanation:
Multiply 8×.75 (6)
Add that to 21
............................
Cosine is

which applies to a right triangle. I hope that helps you.