Answer:
9
Step-by-step explanation:
Your answer would be 70
10 divided by 3=3.33
3.33 times 21= 70
| - 4 | = 4
Thus :
f ( | - 4 | ) = f ( 4 )
f ( 4 ) = ( 4 )^2 - 2(4) + 4
f ( 4 ) = 16 - 8 + 4
f ( 4 ) = 16 + 4 - 8
f ( 4 ) = 20 - 8
f ( 4 ) = 12
11. 18=10+x
x=8
8/4= 2 hours (because there are 8,15 min periods, 4,15 min per 1 hour)
12. 1.44 x 10⁸
13. 2 x 10¹²