Answer:
m= -5/8
Step-by-step explanation:
Slope of a line containing the points,

where, m is the slope
Here,

Simply substitute the point into the given equation; as there is one variable, you only need one point and so one is given. When done so, you shall get b=4
The answer is C. 423.52 m
5x-2+x=9+3x+10
therefore, x = 7
The store owner sold 4/5 of the suitces. That means 1/5 of the suitcases are left. Multiple 225 to 1/5
There are 45 suitcases left