In a group of 38 pupils, 5 play flute only. 14 play piano only. 12 play both instruments. a stufent is chose at random. what is thr probability that the student plays neither instrument? show all the working out

Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square