ABCD is a quadrilateral.
Sides are extended as shown.

Show that x = 100°

At dinner, 2/5 of the people had fish and 1/3 had chicken. if everyone else had lamb, what fraction of the people had lamb? and if 40 people had lamb , calculate the total number of people at the dinner.

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

How many bananas are in a fruit bowl that has 200 total apples and bananas if there are 31 bananas for every 93 apples