Answer:
3584
Step-by-step explanation:
These are the terms of a geometric sequence with n th term
= a
where a is the first term and r the common ratio
r = 14 ÷ 7 = 28 ÷ 14 = 56 ÷ 28 = 2 and a = 7, thus
= 7
= 7 × 512 = 3584
It would be c=2.46p because the Pounds times 2.46 is equal to the cost and the letter always goes after the number
So we are trying to find this red line's length.
We can either find it directly, or use the blue line firs, and then use it as a leg for the green triangle.
So the blue leg is a hypotenuse for two of the edges. So:

from the Pythagorean Theorem
OR

Which works out to:

So now that we have that, using the Pythagorean Theorem again gives:


So the length of the red line is found that way.
But wait! There's more!
As it turns out, the red line can be found with an easier way that works with cubes and boxes (cuboids). It's really easy:

Where a, b, and c are all 10m, and d is the red line. This greatly reduces the math:

which gives the same answer as above, which you can see.
Answer:
The third option with the burgers and the last option with the math tests