Shaun is 4 years older than her sister charmaine. if the sum of their ages is 16 how old is charmaine?
a)
4 years old

b)
6 years old

c)
8 years old

d)
10 years old

The architect's side view drawing of a saltbox-style house shows a post that supports the roof ridge. the support post is 8 ft tall. the distance from the front of the house to the support post is less than the distance from the post to the back of the house. how far from the front of the house is the support post positioned?