So do 260+570 which is 830
The real sum is 823
11 as the 25 need a class for it u can't leave 25 people 325÷30
Answer:
d = 2√3
Step-by-step explanation:
A.) The mean of the 8th and 9th values
Answer:
b = -10
Step-by-step explanation:
2(b + 3) = b – 4
2b + 6 = b - 4
-b -b
b + 6 = -4
-6 -6
b = -10