It's the day before Valentine's Day and Shelly needs to get Valentine cards for all of her classmates. The desks are arranged in a rectangle 7 rows wide and 5 rows long. If there are 3 desks that are empty, how many students are in the class?

32

Step-by-step explanation:

No of desks along length of the rectangle = 7 as it is 7 rows wide.

No of desks along breadth of the rectangle = 7 as it is 5 rows long.

Total number of students is product of these two numbers.

So number of students = 35.

But three desks are empty.

Total students = 35 - 3

= 32.