Which mathematical property is demonstrated? 5⋅7⋅4=5⋅47 associative property of addition commutative property of multiplication commutative property of addition associative property of multiplication PLEASE HELP

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Can someone me i’m confused. will give brainliest and a whole bunch of points

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters