Answer :

Number 17:

17.3% + 4.8% = 22.1%

22.1% = 0.221

0.221 × 196 = 43.316

Answer = C. 43.3

Number 18:

Complementary angles = 90°

90 - 47 = 43

Answer = A. 43
°

Number 19:

Angles 8 and 5 are congruent. That means they are the same.

If angle 8 = 65°, then angle 5 = 65°

Answer = 65°

Number 20:
(Not sure)

1. parellelogram
2. rhombus
3. square

Number 21:

The answer is yes because the length and shape is all the same.

~Hope this helped~