1.

2.

3.

4. you got this one correctly
5.

6.

am going to number 10
10.

9. 16 oz bottles at 1.25 dollars is cheaper than 20 bottles at 1.55 dollars so that 16 bottles is the best to buy
The relationship between a and b is that they are SUPPLEMENTARY ANGLES
Answer: 22
Step-by-step explanation: