Answer:
80 percent
Step-by-step explanation:
2 out of 10
the ten has to be turned into 100 to make it a percentage. so 10 times 10 is 100 and 2 also has to be multiplied by 10 which is 20. 100-20 is 80 which means 80 percent of his apples arent ripe.
Answer:
A Exactly one solution
Step-by-step explanation:

Putting y=0 at second equation, we have

The unique solution is 
Answer:
In the morning, the packing rates per hour was 45. In the afternoon, the packing rates per hour was 40. The difference is 5.