Asprinkler rotates 45 degrees every 15 seconds. how long does it take the sprinkler to rotate 360

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)

What is the value of the product (3-2i)(3+2i)?

2. there are 250 students in a school auditorium. use numbers from the box to complete the table. 16, 38, 18, 45, 25, 50, 32, 60 grade number percent of all students of students fifth 24 sixth 95 seventh 20 eight 45