A. 48 B. 44
C. 52
D. 40

6. The sum of the ages of a father and his son is 74. Four years ago the
father's age was twice as old as his son. How old is the father now?

The correct answer is: Option A: 48

Step-by-step explanation:

Let x be the present age of father and y be the present age of son

Given that

"The sum of the ages of a father and his son is 74"

Now

x-4 will be the age of father 4 years ago

y-4 will be the age of son 4 years ago

The equation will be:

From equation 1:

Putting in equation 2

Put y = 26 in equation 1

The father is 48 years old now.

Hence,

The correct answer is: Option A: 48

All of the shapes listed are polygons. I don't know if that's the answer because it could be anything like they all have at least 3 lines or 3 angles or are all closed figures but you could draw a square and rectangle or something and it'd work as long as it is a closed figure with at least 3 or more sides and angles.