Astudent expressed a sum of two whole numbers as 4*(3+7). what were the two whole numbers ?

Okay so this is a trick question. Here's why.

You're trying to find two whole numbers that add up to equal 4·(3+7)

First, we need to know that 4·(3+7)=40
-because you add what's in the parenthesis 1st and you get 4(10) which is =40

So now we need two numbers that add up to equal 40. So, really you could use any two numbers for this answer as long as they add up to equal 40.

Like so:

40+0=40
55+-15=40
32+8=40
25+15=40
etc

Hope this helps! :)

No he does not because he can only cover 12 square feet from 15 square feet which he will still need 3 more. this is because if 3×5=15 square feet and 15-12=3 which thats the answer