Easy, just write out the multiple of the numbers.
4: 4,8,12,16,20,24,28,32,36,40,44,48,52,56,60
7: 7,14,21,28,35,42,49,56,63,70
Etc.
But a few common multiples:
28,56,84,112,140
These are the first 5 common multiples of 4 and 7.
1 lb = 16 oz
320 lbs = 5,120 oz
5,120 * 4 = 20,480 oz
She ate 20,480 oz of vegetables per month. That was my answer as a whole number.
This equation is written in slope-intercept form y = mx + b
m = slope
b = y-intercept
In this equation the slope is -4/5
Hope This Helped! Good Luck!
It's not a must so you don't really have to it depends on the question