Hannah's grade on her last math test was 4 points more than Mark's grade. Write an expression for Hannah's grade, using m as a variable. Evaluate the expression if m=92.

h =m+4

when m=92,
h = 92+4 = 96

To write an expression for Hannah's grade, using m as a variable, we start with Mark's grade and add 4 points to it.

So the expression for Hannah's grade would be: m + 4

Now, to evaluate the expression when m = 92, we simply substitute 92 in place of m and calculate.

Hannah's grade = 92 + 4 = 96

Therefore, if m = 92, Hannah's grade would be 96.