Which of the following demonstrates the commutative property of multiplication?
a 3(4a − 2) = 12a − 6
b 3(4a − 2) = (4a − 2) ⋅ 3
c 12a − 6 = (4a − 2) ⋅ 3
d (3 ⋅ 4a) − 2 = 3(4a − 2)

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

The school that imani goes to is selling tickets to the annual dance competition. on the first day of the ticket sales the school sold 7 adult tickets and 5 child tickets for a total of $96. the school took in $40 on the second day by seling 3 adult tickets . find the price of an adult ticket and the price of a child ticket. solve by using substitution elimination college prep algebra math heres the 2 equations i came up with 7x+5y=96 and 3x+2y= -40 show all workiv be stuck on this.