One third plus one half

5/6

Step-by-step explanation:

So 1/3 + 1/2 turn them to equivalent denominators so 1/3 = 2/6

1/2 equals 3/6 . 3/6+2/6 is 5/6

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.