Answer:
10
Step-by-step explanation:
the range is the difference between the biggest and the smallest number
55-45=10
Answer:
12
Step-by-step explanation:
X - 4y = 28
2x + y = 2
solve for x
y= -2x + 2
y= x/4 - 7
solve for system of equations
(4,-6)
x= 4, y= -6
Answer:
375
Step-by-step explanation:500 equals 100% divide by 4 its 125 times 3 equals 375, your welcome