Answer:
3. ???? (3 but that's incorrect)
4. 75 D
Step-by-step explanation:
Use PEMDAS ()^x/+-
A and b are the 2 smaller sides, and c = hypotenus; only for right triangles,
Pythagorean Theorem states that:

given c = 6 in., a = 2 in.


So the three side are 2, 6, and 5.66 inches
Answer:
2 stars and 3 points
Step-by-step explanation:
8+2=10
10+4=14
14+6=20
the value increases by 2 each time.
12+3=15
15+6=21
21+9=30
this value is based on multiples of three.
Good luck