Pa help po please asap

In triangle abc, ab=6 root 3 cm, ac = 12 cm and angle bc = 6 cm . find the measure of abpngle b​

You go to the cafeteria for lunch and have a choice of 4 entrees,5 drinks,and 4 desserts.assuming you have one of each category.how many different lunches could be made?

Are there any general statements that you can develop to predict the relationship between the coefficients of a quadratic equation ax²+bx+c=0 and the roots? if so, describe this rule, let x sub1 and x sub 2 be the roots of the quadratic equation.​