Cards marked with number 10 , 11 , 12,………..50 are placed in a box and mixed thoroughly. A card is drawn at random from the box. Find the

probability that the selected card bears a perfect square number.​

Where does middle c get it’s name? a. it sits in the middle of a brass clef b. it sits in the middle of the grand staff c. if sits in the middle of the alto clef d.its sits in the middle of the treble clef