1) R
2) A
5) I
7) Q
8) N
9) L
10) H
11) U
12) E
13) Y
Sorry I could on see these ones. The fractions were a bit hard to see but I hope this helped a bit.
Divide the 3 from the 3c, and move over towards the 3 on the right side of the equation. 3 ÷ 3 = 1, so c = 1.
3 and 4 would both be corrent because one is smaller is 2 would make it equal
It appears that no graph photos have been uploaded, however, I have pasted the graph for the equation Y= -4 sqrt x.
https://www.symbolab.com/solver/step-by-step/y%3D-4%5Csqrt%7Bx%7D