A is the correct answer !
Answer:
4y²-1/4 is the required answer
Step-by-step explanation:

Answer:
In statistics, the range of a set of data is the difference between the largest and smallest values.
Step-by-step explanation:
Easy as pie
Answer:
x2 y1, x4 y2, x6 y3, x8 y4
Step-by-step explanation:
You have to double the x for each y