So the man's age is divisible by 3, 5, and 7 but not by 2, 4, 6, or 8.
3 * 5 * 7 = 105
105 is not divisible by 2, 4, 6, or 8.
Not sure if any lower ages are there, but since the man is 105 years old, you would receive $105.
Answer is the first one on left
4x - y = 1
4x - 1 = y...y = 4x - 1
u have a slope of 4....a y int of ( 0,-1)....an x int of (1/4,0)