Identify the rate and unit rate based on the graph. Then, write an equation to represent each relationship below. helppp

1.) 21

2.) 0.453

3.) 1.5

4.) 48

5.) $ 22

step-by-step explanation:

1. a^4+8a^3+24a^2+32a+16

2.y^8+8y^7+28y^6+56y^5+70y^4+56y^3+28y^2+8y+1

3.x^6-3x^4y^2+3x^2y^4-y^6

6 cars because if you have 8 and subtract 2 youll have 6 left over