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

2. using calculations based on a perpetual inventory system, determine the inventory balance altira would report in its august 31, 2021, balance sheet and the cost of goods sold it would report in its august 2021 income statement using the average cost method. (round "average cost per unit" to 2 decimal places.)

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.

Anew landowner is interested in constructing a fence around the perimeter of her property. her property is 1,080√30 feet wide and 500√20 feet long. what is the perimeter of the property? (recall that the perimeter is the sum of each side of a shape or boundary). a 1,580√40 feet b. 5,320√5 feet c. 3,160√20 feet d. 10,640√5 feet