Answer: I do not understand the options you gave but but cos30º is equal to 
/2 which is 0.86602540378.
C . the graph will shift upwards because it is increasing on a graph
A, C, and D. Hope this helps!
Answer:
8. 12 in
9. 30 ft
10. 87.92 in
Step-by-step explanation:
To find the intersecting point, you have to put the two formulas equal to each other
First isolate the same variable, in this case y
So y=x-4
Now we can say
2x + 7 = x - 4
Now solve for x
X= 3
Now fill this in in either one of the formulas
Y= 2 (3) + 7
Y= 13
So they’ll intersect at (3,13)
