Well to find this out you need to make an equation
s+7=j
So for example if Johnny's sister is 15 then Johnny would be 22 because
s(sister's age) +7(number of years difference between their ages)=22(Johnny's age)
Answer:
The principle of superposition
Explanation:
The principle of superposition tells you how rock layers are laid.
The answer is: A. Lake Erie with the Hudson River
Answer:
all Four...
Explanation:
all four are true...
they occur simultaneously