To determine the new cost for 3 orders of popcorn (at half price) and 3 drinks, we need to break it down into the costs of the popcorn and the drinks.
- The original cost of each order of popcorn is $3.50.
- Since popcorn is half price after halving the movie's duration, the new cost per order becomes \( \frac{3.50}{2} = 1.75 \).
- The cost for 3 orders of popcorn is therefore \( 3 \times 1.75 = 3 \times \frac{3.50}{2} = \frac{3 \times 3.50}{2} = \frac{10.50}{2} = 5.25 \).
- The cost for 3 drinks (at $1.35 each) is \( 3 \times 1.35 = 4.05 \).
Now, combine the costs:
- Total cost for popcorn: \( \frac{3 \times 3.50}{2} = \frac{10.50}{2} = 5.25 \)
- Total cost for drinks: \( 3 \times 1.35 = 4.05 \)
Thus, the expression to find the total cost would be: \[ \frac{1}{2}(3 \times 3.50) + 3 \times 1.35 \]
This matches the expression: 1 half times open bracket 3 times 3.50 plus 3 times 1.35 close bracket.