Cross Multiplication is helpful for when you are using fractions.
Example:
1 4
— x — = ?????
2 2
Sooooo, you must multiply 1 by 2 to get 2. Then, multiply 4 by to 2, to equal 8.
Ben I do want that answer key
Answer: D Would be correct
Explanation: (3 + 5i) – (2 + i) And also, C for the other one.
It means that each section of the test that you took you scored 1130 through 1210.