In a class of 30 students, 12 of them have a cat 14 of them have a dog and 8 of them have neither. find the probability that a student chosen at random has a cat and a dog.

Find the x-intercepts of the parabola withvertex (1,1) and y-intercept (0,-3).write your answer in this form: (x1,if necessary, round to the nearest hundredth.

George has seven boxes of five pencils. giulio three boxes of eight pencils. one of the boys arranges all his pencils equally into two groups. was this george or giulio how many are in each group explain

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.