Use the distributive property to rewrite each expression 5x+10

Ifigured out the question and i dont know what to put here

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?