Both of them together have 690 because you subtract 152 from 421 so...
421-152=269
Then add 269 to 421
421+269=690
When two rays show a common endpoint they form an angel : TRUE
V=lxwxh. 15x19x169= 48,165, which doesn't seem to be an answer
The third one is the correct answer
-2 - 24i, you can easily sum all real and imaginary parts to find this.
Alternatively, you can of course write -(2+24i)
