How do you write 3+(4*12) in words of nurmerical expression

We need to understand the order of actions.  The 4x12 will be done first because it is in parentheses.

So,

"4 times twelve"

That now covers the 4x12 part, now we move on to the 3+.  3+ can be represented by "3 more."

If we put both parts together,

"3 more than 4 times twelve"  

b. 24 mm

step-by-step explanation:

use the pythagorean theorem.

a^2 + b^2 = c^2

a^2 + 7^2 = 25^2

a^2 + 49 = 625

a^2 = 576

a = 24

answer: b. 24 mm