Answer:
73
Step-by-step explanation:
let the number = X
If 139 is added, it becomes= X +139
the result becomes 44less than four time the number
= 4(39)-44 = 156-44 =112
the set up equation becomes
X +39 = 112
solving for the value of X
X = 112-39
X = 73
M = (y2-y1)/(x2-x1)
= (4-14)/3-1
= -10/2
= -5
The answer to your question is 210 combinations are possible :)
