Question

1/2 ×[42+55]×15 please
help me find this ​

Answer 1

Answer:

737.5

$1 \div 2 \times (42 + 55) \times 15 \\ 1 \div 2 \times (97) \times 15 \\ 1 \div 2 \times 1475 \\ 1475 \div 2 \\ 737.5$