The top left graph is the only one correct. It rises up slowly then faster, and then stays constant for an hour, then decreases.
Answer:
10
Step-by-step explanation:I had this
X is going to equal two in this equation.
Step-by-step explanation:

the polygon is 15 sided.
Answer:
x=6, x=-5
Step-by-step explanation:
Factoring this quadratic gets you (x-6)(x+5)=0, for this to be possible, either x-6 or x+5 has to be zero, so therefor x is 6, or x is -5