Answer:
The son is 20 and a half years old.
The father is 36 and a half years old.
Step-by-step explanation:
We can solve this easily by turning it into an equation.
Let the mans age be y and the fathers age be x.
y+x=57
x=y+16
We can use the substitution method to solve for the first equation.
y+(y+16)=57
Now we only have one variable to solve for. Add like terms.
2y+16=57
Subtract 16 on both sides.
2y=41
Divide both sides by 2 to isolate y.
y=20.5
Now substitute 20.5 for y to solve for x.
20.5+x=57
Subtract 20.5 from both sides.
x=36.5
<em>The son is 20 and a half years old.</em>
<em>The father is 36 and a half years old.</em>
Hope this helps!
Answer:

Step-by-step explanation:
Suppose,
is initial amount in the saving account,
Here, the annual interest rate is 6% and additional amount in each year is $ 50,
So, the amount after one year,

Amount after 2 years,

Amount after 3 years,

................................., so on....
Hence, by following the pattern,
The amount after n years,

Which is the required recurrence relation for the amount of money in a savings account
For the first one false false and the second on is true true
The answer is c) 45 times PI cubed.