Answer:A for the first one and C for the second one
Step-by-step explanation:
Answer:
4+3i
Step-by-step explanation:
the
needs to be simplified
first, I broke it down to
and 
simplifies to i ;and can be broken down to
and 
can be simplified further to 3
Now all you have to do is put it together
4(which you didnt have to do anything to)+ 3i( 3 from the sqrt of 9 and i from the sqrt of -1) sqrt 3( which cant be simplified further)
a an c are 65 d and b are 25 those are four of them
I got -25.
1) -1/5n +7 = 2
2) -1/5n=-5
3) n=25