2 S and 5's in denominator 2
ler the numbers 24 and 504.
Write both numbers as a product of primes​

Step-by-step explanation:

504 = 2 x 2 x 2 x 3 x 3 x 7

24 = 2 x 2 x 2  x 3

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.