4-11i * 6 + 2i
four minus eleven i times six plus two i

Here you need to know and understand order of operations rules, as well as elementary operations on complex numbers.

Remember the acronym "pemdas?"  It governs the order in which you must perform math operations.  In this case, you must multiply or divide BEFORE you add or subtract.  Thus, do -11i*6 first; the correct result (product) is -66i.

Now you have 4 - 66i + 2i.  Combining the imaginary terms, -66i + 2i = -64i.

Thus, you end up with 4 - 64i.  Any questions?

The length is 23 and y because you add them together

The reporter forgot to multiply the decimal by 100, making it 25%