Answer:
He is 20 years old.
Step-by-step explanation:
cuz 20 - 8 = 12(sisters age)
so if the sum of both their ages is 20 then, he is 20.
Answer:
Step-by-step explanation:
Q = 3 (As is 3 is a whole number)
R = -6/5 ( As -6/3 is a negative no and a intege. Even it is the a whole number
Add 7 and 7 which is 14 and then take it apart because it is an even number
999.1 is the answer you multiply both then add
