Answer:
Step-by-step explanation:
1.) mean is 4 1,2,3,5,6,7
2.) Four students won 12, 13, 14, 15, 16, or 17 prizes.
A total of 10 prizes were won by all the students.
3.)don't know number 3
I believe d is the answer please contact me if its wrong
Answer:
18
Step-by-step explanation:
Multiply 120 and 0.15
Answer: x= -1, y= -3
Step-by-step explanation
solve like a system of equations
x-y-2 = 0
+
x+y+4=0
------------
2x+2=0, 2x= -2, x= -1, then plug that back into either equation
-1+y+4=0, y+3=0, y= -3