(A.2D) The value of y varies directly with 2. If x = 3, then y = 21. What is the value of x when y = 105?

X=15
Because if x=3 when y=21, then if y=105, that would mean you’ll have to divided 105 by 21 which equals 5. Take that 5 and multiply it to the x. So 3x5=15

Letter a i would say