Answer:
15
Step-by-step explanation:
z2 - 2z + 15
(15)2 - 2(15) + 15
30 - 30 + 15
0 + 15
15
Answer:

Step-by-step explanation:
84/4=21
Square root of 4=2

Answer:
200% of the number she invited.
Step-by-step explanation:
20/10 = 2
2 x 100 = 200
Answer:
The answer is 4/8=2/4 because 4/8 simplifying is 2/4 or 1/2