Sofia bought bananas ,cereal, and milk at the store. she spent all of her money. she spent 3/10 of her money on bananas and 4/10 on cereal. what fraction of her money did sofia spend on milk? write and solve equations.

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: