Answers:
1. 1
2. 2
3. 4
4. 1
//Hope this helps. Look the image for better understanding.
Answer:
10b=60
Step-by-step explanation:
just took on edge, might be late but i can help people in the future.
Answer:
True: B, C and D
Step-by-step explanation:
The graph of the function is shown in the attached diagram.
The vertex of the parabola (parabola is the graph of the function f(x)) is at (-3,-16), because

So, option A is false and option B is true.
As you can see from the graph, the function is increasing for all x>-3, thus option C is true.
The graph is positive for x<-7 and x>1 and negative for -7<x<1, so option D is true and option E is false.
Last one..................................................................................................................................................
This is false. However all squares are parrallelograms.