Me ayudan con esto por favor

The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0

What is the solution to the equation 9^(x+1) =27

The first side of a triangle measures 5 in less than the second side, the third side is 3 in more than the first side, and the perimeter is 17 in. how long is the third side? if s represents the length of the second side, which of the following represents the length of the third side? s-5 ws-2 s+ 3 next question ask for turn it in