Question

12 divided by the sum of h and 2 Write it in algebraic expression

Answer 1

Since h and 2 together is a sum, and sum is what you get when you add two or more number/variables, add h and 2 for the expression h+2.
Since 12 is being divided by (h + 2), put the 12 above the h+2. This gives you the following expression:
$\frac{12}{h+2}$

Answer 2

12 divided by the sum of h and 2....

12 / (h + 2)