List all the factors of 12 and if it is prime

Need to increase the numbers of customers i talk to daily by 20% how many customers do i need to talk to if i talk to a average of 8 customers per hour during an 8 hour shift

If the discriminant if a quadratic equation is 4 which statement describes the roots?

Solve this problem! extra ! 3025/5.5 = a/90.75