Someone help me asap

Step-by-step explanation:

Y - 13 = 8

Y = 8 + 13

Y = 21

I think this should be the answer

answer: no

step-by-step explanation:

you are only given the cost not the amount of pounds.

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.