This is a cubic binomial.
We have,

Introduce variable
such that 
The sum
is therefore 
So,
(sadia's age)
(father's age)
Hope this helps :)
Answer: 1513.
Step-by-step explanation:
This is just another way to write subtraction! So just write it as a subtraction problem.
1576-63 = 1513 ^^
D is the correct answer...
Answer:
4/1
Step-by-step explanation:
hope that helps :))))