To find out how much Mrs. Banks spent on markers, you need to multiply the cost per box of markers by the number of students.
Cost per box = $1.69
Number of students = 29
Total cost = Cost per box × Number of students
Total cost = $1.69 × 29
Now, let's calculate it:
\[ 1.69 \times 29 = 49.01 \]
Therefore, Mrs. Banks spent $49.01.
The correct answer is A. $49.01.