∠A and ∠B are complementary angles. If m∠A is 30∘, what is the measure of ∠B? Group of answer choices
40∘
90∘
150∘
60

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.

Cameron made 1 loaf of bread. his family ate 4/6 of the loaf of bread. how much of the loaf of bread remains? /

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.