Answer:
the cashier has 14 ten-dollar bills.
Explanation:
Let x be the number of ten-dollar bills.
Then the number of five-dollar bills is 135 - x.
The total value of the ten-dollar bills is 10x.
The total value of the five-dollar bills is 5(135 - x).
The total value of all the bills is 10x + 5(135 - x) = 745.
Combining like terms, we get 5x + 675 = 745.
Subtracting 675 from both sides, we get 5x = 70.
Dividing both sides by 5, we get x = 14.
Therefore, the cashier has 14 ten-dollar bills.