Mathematics

Armani Riddle

4 November, 11:46

A carpenter had 28 nails from previous job and needs to buy more. A store has 7 boxes of nails and each box contains 100 nails. The carpenter needs to buy at least 3 boxes. The number of nails the carpenter will have after purchasing n boxes is represented by a function.

f (n) = 100n + 28

What is the practical domain of the function?

A) all integers from 3 to 7, inclusive

B) {328, 428, 528, 628, 728}

C) all real numbers from 3 to 7,

inclusive

D) all real numbers