23) 17/30
41) 3/10 because 3/10 + 7/10 = 10/10 or 1.
Answer: Point B
Point B is above (-2, -1)
A) The graph will move up by 4 units
1,000,000+3000,000+30,000+4,000+400+50+7
Answer: 1:5
Step-by-step explanation:
Given: The cost of every mirror is proportional to the cube of the mirror's radius.
i.e. 
Their largest mirrors have radii of 5 meters and their smallest mirrors have radii of 1 meter.
Then,

The ratio of the total cost of 25 of the company's smallest mirrors to the cost of one of the company's largest mirrors will be:

Hence, the ratio of the total cost of 25 of the company's smallest mirrors to the cost of one of the company's largest mirrors = 1:5 .