calculate the area of a circle with radius of 2cm (use pie)

Consider 6x2 + 6x + 1. which term immediately tells you that this expression is not a perfect square trinomial? justify your answer

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

You have 12 balloons to blow up for your birthday party. you blow up 1/3, and your friend blows up 5 of them. what fraction of the baloons still need blowing up