The answer is choice D.
y = 2x
I will show two reasons why this equation is correct.
Let x = 1
y = 2(1)
y = 2
The first point in the table is (1,2).
In the table, x = 3 is the second choice.
y = 2(3)
y = 6
The second point in the table is (3,6).
Answer: y = 2x
7.236 divided by .12 is 60.3
3/5 ÷ 9/10
...becomes
3/5 * 10/9 = 30/45
...simplify by dividing by 15/15
2/3
The answer is 4 because to find the total hours when you already have the speed and the distance you divide.