You get extract objects out of 97 object in this number of ways:
So, the number of all possible subsets is
Y=total cost. x=# of days.
y=17x+130.
substitute in 9 for x days.
y=17(9) +130 = 153 +130 = 283
y=$283
A) 6u+3u+4-15= (9u-11) <---answer ;) B)-1-2u-9-(-5u)=(3u-10)<--answer C) 7u+25+(-10u)-16= (-3u+9)<--answeeer
1. 8+(-10)
2. 8+10
3. -8+(-10)
4. -8+10
9. 0
10.-4
11. 23
12. -6
13. 3
14. -10