Determine if statement 1 & 2 lead to statement 3 by the law of detachment, law of syllogism, or if it is invalid.1. If a polygon is regular, then all the interior angles are congruent.2. If a polygon is regular, then all its sides are congruent.3. The polygon is regular.

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.

Me. i can't figure out this question. give an explanation too. .

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.