Which pair of expressions is equivalent using the associative property of multiplication?

5(3a ⋅ 4) = 15a ⋅ 20
5(3a ⋅ 4) = (3a ⋅ 4) ⋅ 5
5(3a ⋅ 4) = (5 ⋅ 3a) ⋅ 4
5(3a ⋅ 4) = 5 ⋅ 3a ⋅ 4

Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse. a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?