Answer:
42.5
Explanation:
You have to multiply 7 times 5 equals 35. Then you multiply 7 times 2 which is 14 plus 3 equals 5. So you have 175 as the first number. Then you put a 0 under that number. You multiply 5 times 1 which is 5 and 2 times 1 which is 2. Now you have 250 as your second number.
Add 175 plus 250 which is 425 but you have to put the decimal between 2 and 5. Now you have 42.5
Hope that helps