Answer:About 135 grandparents
Step-by-step explanation:
Lisa's cut will be represented by the equation y = 1/4x + 4
I'm sorry, I don't see the question. Could you please retake the photo in better quality so I could answer it? Thanks!
Answer: 
Step-by-step explanation:
Here, According to the question, The population of the world is 4 billion (approx).
Again According to the question, The world's population has grown at an average rate of 1.9 percent per year since 1945.
Therefore, after 1975 the growth rate will remains same.
Thus, the population of the world after t years,
(By the formula
)
⇒
Where 1.019 is the growth rate and 4 billion is the initial population.