Can you PLEASE check 3 more of my multiple choice algebra answers? THANK YOU?

Question

Answer 1

1) (5-3i)+(4-8i)

5-3i+4-8i

9-11i

Option 3 is correct answer

3)2√(x+13)+5 = 17 --------- (1)

Substituete the value of x= -7 in (1)

2√(-7+13)+5 = 17

2√4+5 = 17

9 = 17

Substitute the value of x = 23 in (1)

2√(23+13)+5 = 17

2√36+5 = 17

17 = 17

Substitute the value of x = 6 in (1)

2√(6+13)+5 = 17

2√19 +5 = 17

For x = -7, 6 are not satisified  the equation.

So the x = 23 is solution for given equation.

Option 2 is correct answer.

2)i^25

i is an imagenary number.

i^2 = -1

i^24 = 1

i^24*i = i^25

i^25 = i

Option 4 is correct answer.