A company charges 7 for a T-shirt and ships any order for $22A school principal ordered a number of T-shirts for the school store. The total cost of the order was $1,520. How many T-shirts did the principal order?
69
150
214
220
Let's call the number of T-shirts the principal ordered x.
The cost of each T-shirt is $7, so the total cost of the T-shirts is 7x.
The shipping fee for any order is $22.
Therefore, the total cost of the order is 7x + $22.
We are told that the total cost of the order was $1,520.
So, we can write the equation: 7x + $22 = $1,520.
Subtracting $22 from both sides of the equation, we get: 7x = $1,498.
Dividing both sides of the equation by 7, we get: x = $1,498 / 7 = 214.
Therefore, the principal ordered 214 T-shirts for the school store. Answer: \boxed{214}.