Four girls and three boys volunteer to represent their class at a school assembly. the teacher selects one name and then another from a bag containing the seven students names. what is the probability that both representatives will be girls

Plzzz answer both questions and i will give you 100 points

Prove the converse of the pythagorean theorem using similar triangles. the converse of the pythagorean theorem states that when the sum of the squares of the lengths of the legs of the triangle equals the squares length of the hypotenuse, the triangle is a right triangle. be sure to create and name the appropriate geometric figures.

There are 85 apples on the big tree, john picked out 15%. how many did john pick out?