Answer:
s = 56/5
Step-by-step explanation:
11.2
Combine like terms.
-65 + 9 = -56 (subtract 9 from both sides)
-56 = -5s (divide by -5)
s=11.2
23,4
(6 - 2) - 1 = 4 - 1 = 3
6 - (2 - 1) = 6 - 1 = 5
The associative rule doesn't work for subtraction because you get different results when you move the parentheses.
6
Answer: 153 boys
